EXHIBIT 10.37



                               CONTRACT BETWEEN

                        BRITISH TELECOMMUNICATIONS PLC

                                      AND

                  CASTLE TRANSMISSION INTERNATIONAL  LIMITED

                             FOR THE PROVISION OF
                        DIGITAL TERRESTRIAL TELEVISION
                         NETWORK DISTRIBUTION SERVICE

 
                                                                               1


INDEX
- -----

1.   Interpretation
2.   Provision of the Service
3.   Acceptance Tests
4.   BT Equipment and Site Requirements, and Customer's Content Signals
     Responsibilities
5.   Connection of Equipment to the Service
6.   Access and Site Regulations
7.   Use of the Service
8.   Intellectual Property Rights
9.   Intellectual Property Right Indemnities
10.  Confidentiality
11.  Charges and Deposits
12.  Limitation of Liability
13.  Matters Beyond Either Party's Reasonable Control
14.  Escalation and Dispute Resolution
15.  Termination of this Contract by Notice
16.  Breaches of this Contract
17.  Changes to this Contract
18.  Insurance
19.  Assignment
20.  Entire Agreement
21.  Notices

SCHEDULES

1.   Description of the Service
2.   Charges for the Service
3.   Late Delivery Payments and Abatements
4.   Functional Design Specification
5.   Implementation Plan
6.   Acceptance Tests
7.   Network Management Service
8.   Specifications of Customer's Content Signals
9.   Persons permitted to receive confidential information
10.  Contract Change Order Form

 
                                                                               2

THIS CONTRACT is made 19 May 1998
BETWEEN
BRITISH TELECOMMUNICATIONS PLC whose registered office is at 81 Newgate Street,
London EC1A 7AJ, registered in England No. 1800000 ("BT").
AND
CASTLE TRANSMISSION INTERNATIONAL LIMITED whose registered office is at Warwick
Technology Park, Gallows Hill, Heathcote Lane, Warwick CV34 6TN,  registered in
England No. 3196207  ("the Customer")

INTRODUCTION

1.        The Customer has requested BT to provide a Digital Terrestrial
          Television Network Distribution Service ("DTTV Service").

2.        BT and the Customer have agreed the DTTV Service will be provided on
          the terms and conditions of this Contract.

IT IS AGREED AS FOLLOWS:

1.   INTERPRETATION

1.1  In this Contract the following words and phrases have the following
     meanings:

     GENERAL DEFINITIONS :

     "Abatements"             means the payments described in Part 3 of Schedule
                              3.
 
     "Acceptance Criteria"    means the acceptance criteria described in Part
                              2 of Schedule 6
 
     "Acceptance Tests"       means the acceptance tests described in Part 1
                              of Schedule 6.

 
                                                                               3

     "ASI"                    means Asynchronous Serial Interface, a DVB
                              transport stream specification.
 
     "ASI mux" or "ASI        means a BT proprietory interface device which
      multiplex"              combines or separates a number of individual
                              transport streams for carriage over the DTTV
                              Distribution Network.
 
     "Broadcasting            means the Independent Television Commission
      Authority"              as defined in the Broadcasting Acts 1990 and
                              1996, or, in the case of the BBC the
                              government department and/or governing body
                              having jurisdiction over the BBC's broadcasting
                              activities under any Charter establishing the
                              BBC or any amendment thereto.
 
     "BT Equipment"           means equipment (including software) placed
                              on a Site by BT for the provision of the Service.
 
     "BT's Licence"           means the Licence granted to BT under Section
                              7 of the Telecommunications Act 1984.
 
     "BT's Licensed Area      means the United Kingdom other than the area
      in the United           in which Kingston Communications (Hull) plc is
      Kingdom"                licensed to run telecommunication systems
                              under its licence granted to it under Section 7 of
                              the Telecommunications Act 1984
 
     "Charges"                means the charges payable by the Customer for
                              the Service in accordance with Clause 11 and
                              Schedule 2.
 
     "CNAP"                   means a Core Network Access Point, being a
                              primary point at which access and/or egress

 
                                                                               4


                              can be provided to the DTTV Distribution
                              Network.

     "Connection Point"       means a block terminal, a socket for a
                              removable plug, a distribution frame, or any
                              other device supplied and installed by BT at
                              Playout Centres  and/or at Transmitter Sites.
 
     "Customer's Content      means video, audio and data signals of the
      Signals"                Customer, or of any third party the Customer
                              allows to use the Service,  having the technical
                              characteristics and specifications described in
                              Schedule 8.
 
     "Customer                means equipment directly connected to the
      Equipment"              DTTV Distribution Network used by the
                              Customer, or by any third party the Customer
                              allows to use the Service.
 
     "Day"                    means, for the purposes of Schedule 3, Day as
                              described in Part 1 of Schedule 3.
 
     "Digital Network         means the industry body of that name established
      Group"                  to facilitate the introduction of digital
                              television in the United Kingdom.

     "Distribution Input      means an interface (physical, electrical and data)
      Interface"              at which the Customer or its agent delivers the
                              Customer's Contents Signals to BT for distribution
                              across the DTTV Distribution Network, having the
                              characteristics described in Part 1 of Schedule 1.
 
     "Distribution Output     means an interface (physical, electrical and data)
      Interface"              at which BT delivers the Customer's

 
                                                                               5

                              Contents Signals back to the Customer or its
                              agent after completing its passage through the
                              DTTV Distribution Network, having the
                              characteristics described in Part 1 of Schedule 1.
 
     "DTTV Distribution       means the network to be established by BT for
      Network"                providing the Service.

     "DTTV Multiplex          means a multiplex service as defined in the
      Service"                Broadcasting Act 1996.
 
     "DVB"                    means the standards developed by the Digital
                              Video Broadcasting Project.
 
     "Emergency"              means an emergency of any kind including any
                              circumstance whatever resulting from major
                              accidents, natural disasters and incidents
                              involving toxic or radio-active materials.
 
     "Emergency               means in respect of any locality :-
      Organisations"          (i)  the relevant public police, fire, ambulance
                              and coastguard services for that locality; and
                              (ii) any other similar organisation providing
                              assistance to the public in Emergencies in respect
                              of which BT provides a public emergency call
                              service.
 
     "Full Testing            means the Full Testing Service as described in
      Service"                Part 1 of Schedule 1.
 
     "Functional Design       means the document describing the technical
      Specification"          characteristics and specifications relating to the
                              Service as described in Schedule 4.

 
                                                                               6

     "Group Company"          means a subsidiary or holding company of BT or
                              of the Customer (as appropriate), or a subsidiary
                              of that holding company, all as defined by Section
                              736 of the Companies Act 1985.
 
     "Implementation          means the BT implementation plan for delivery
      Plan"                   and testing of the Service as described in
                              Schedule 5.
 
     "Late Delivery           means the payments described in Part 1 of
      Payments"               Schedule 3.
 
     "Loss of Service"        means Loss of Service as defined in Part 2 of
                              Schedule 3.
 
     Minimum Period           means the period from signature of this Contract
                              to the expiry of the 12th anniversary of 31
                              October 1998 or such later date as may be
                              substituted pursuant to the provisions of Sub-
                              clause 17.2.1, and as such period may be
                              extended by the Customer pursuant to the
                              provisions of Sub-clause 15.1.
 
     "Multiplier"             means the Multiplier as described in Part 1 of
                              Schedule 3.
 
     "Network                 means the network management service and fault
      Management              reporting procedure as described in Schedule 7 to
      Service"                be provided under this Contract in relation to the
                              Service.
 
     "Operational Service     means the date as defined in paragraph 1.4 (b) of
      Date"                   Schedule 2.
 

 
                                                                               7

     "Phase 1                 means the Phase 1 Transmitter Sites as defined
      Transmitter Sites"      in Part 1 of Schedule 3 and as described in Part
                              2 of Schedule 1.
 
     "Phase 2                 means the Phase 2 Transmitter Sites as defined
      Transmitter Sites"      in Part 1 of Schedule 3 and as described in Part
                              2 of Schedule 1.
 
     "Playout Centre"         means a playout centre detailed in Part 3 of
                              Schedule 1.
 
     "Playout Centre          means the owner of a Playout Centre.
      Owner"
 
     "Preliminary Testing     means the Preliminary Testing Service as
      Service"                described in Part 1 of Schedule 1.
 
     "Region"                 means a region listed in the Table at the end of
                              Part 1, Schedule 1, paragraph 2.
 
     "Service"                means the service or, where appropriate, the
                              services or part of a service, to be provided by
                              BT to the Customer as described or referred to in
                              Part 1 of Schedule 1.
 
     "Service Connection      means the initial Service Connection Charge
      Charge"                 payable by the Customer as described in
                              Schedule 2.
 
     "Service Delivery        means the respective service delivery dates set
      Dates"                  out in  Schedule 1, Part 2, column 6 by which a
                              fully operational Service is to be provided to the
                              Customer at the respective Transmitter Sites set
                              out in Schedule 1, Part 2, column 2.
 
     "Service Full Testing    means the respective service full testing dates 
      Dates"                  setout in Schedule 1, Part 2, column 5 by which
                              the Full Testing Service is to be provided for
                              Acceptance Tests at the respective Transmitter
                              Sites set out in Schedule 1, Part 2, column 2.
 

 
                                                                               8

     "Service Preliminary     means the respective service preliminary Testing
      Testing Dates"          Dates set out in Schedule 1, Part 2, column 4 by
                              which the Preliminary Testing Service is to be
                              provided for Acceptance Tests to the respective
                              Transmitter Sites set out in Schedule 1, Part 2,
                              column 2.
 
     "Service Rental          means the annual Service Rental Charge payable
      Charge"                 by the Customer as described in Schedule 2.
 
     "Site"                   means the Playout Centre(s) and Transmitter
                              Site(s) as detailed in Schedule 1.
 
     "SNAP"                   means a Separacy Network Access Point, being
                              a separate, secondary point at which access or
                              egress can be provided to the DTTV Distribution
                              Network.
 
     "Transmitter Site"       means a  transmitter site detailed in Schedule 1,
                              Part 2, column 2.
 
     "Transmitter Site        means the owner of a Transmitter Site as detailed
      Owner"                  in Schedule 1, Part 2, column 3.


1.2  The Schedules form part of this Contract.  References to Clauses or Sub-
     clauses are to Clauses or Sub-clauses of this Contract;  references to
     paragraphs are to paragraphs of the appropriate Schedule.  Clause headings
     are inserted for convenience only, and will not affect the interpretation
     of this Contract.

 
                                                                               9

1.3  References to Statutes or to Statutory Instruments include any modification
     or re-enactment of the same.

1.4  Except where the context otherwise requires, references to the singular
     will include the plural, and vice versa.

2.   PROVISION OF THE SERVICE

2.1  BT will provide the Service to the Customer on the terms of this Contract.

2.2  BT will provide the Preliminary Testing Service, the Full Testing Service,
     and fully operational Service to the Transmitter Sites by the respective
     Service Preliminary Testing Dates, Service Full Testing Dates, and Service
     Delivery Dates, but if BT does not do so, its only financial liability to
     the Customer will be to pay Late Delivery Payments in the circumstances
     described in Part 1 of Schedule 3.

2.3  BT has designed the network it will use to provide the Service to achieve
     a minimum 99.99% availability of Service.  However, in the nature of any
     service it cannot be guaranteed that faults will never arise.  The Customer
     will be entitled to Abatements for Loss of Service in the circumstances
     described in Part 3 of Schedule 3, and BT will provide a fault monitoring,
     reporting and repair service as part of the Network Management Service.

2.4  The performance and functionality of the Service will not be affected by
     dates, prior to, during or after 1 January 2000.  In particular:

 
                                                                              10

        (a)  No value for current date will cause any interruption in operation.
        
        (b)  Date-based functionality will behave consistently for dates prior
             to, during and after 1 January 2000.

        (c)  In all interfaces and data storage, the century in any date will be
             specified either explicitly or by unambiguous algorithms or
             inferencing rules.

        (d)  Year 2000 will be recognised as a leap year.

2.5     BT may from time to time give the Customer advice concerning matters
        essential to health, safety or the quality of any telecommunications
        service provided by BT to the Customer or any other customer.

2.6     In the event of an Emergency, BT may suspend the Service in order to
        give Emergency Organisations or departments of central or local
        government access to the Service in accordance with requests made under
        Condition 9 of BT's Licence, or in order to comply with orders or
        directions of a competent authority in exercise of statutory or other
        executive powers in connection with such Emergency, and suspension in
        such circumstances will be treated as an event arising under Clause 13.

2.7 (a) BT will co-operate with the Customer's own customer DTTV Multiplex
        Service operators' systems integrators as required to enable the
        integration of the DTTV Distribution Network with the Customer's own
        customer multiplex and distribution systems, and generally in the
        provision of the Service during the term of this Contract.
        Correspondingly, the Customer will procure that such third parties co-
        operate with BT in the installation and operation of the DTTV
        Distribution Network.
 
    (b) BT will deploy its people as necessary to enable the Services to be
        available to the relevant Transmitter Sites for testing in accordance
        with the provisions of Clause 3 and to enable fully operational Services
        to commence on the Service Delivery Dates.

 
                                                                              11

3.   ACCEPTANCE TESTS

3.1  BT will give the Customer 5 working days' prior notice of BT's intention to
     carry out Acceptance Tests at Sites to be specified in the notice.  The
     Customer's nominated representatives will be entitled to attend the
     Acceptance Tests, but as witnesses only.  BT will accommodate as many of
     the Customer's nominated representatives for such attendance as it
     reasonably can, and in any event a minimum of three.  BT will at all times
     remain in control of testing the Service while the Acceptance Tests are
     carried out.

3.2  Provided BT considers that the Acceptance Tests demonstrate that the
     Service meets the Acceptance Criteria, BT will notify the Customer in
     writing of the satisfactory completion of the Acceptance Tests with copies
     of the results as soon as they are available.  The Customer will respond as
     soon as reasonably practicable and in any event within 5 working days of
     receipt of such written notification and copy results, failing which the
     Service will be deemed to be acceptable and ready for provision to the
     Sites specified in such BT notice.  Where the Customer does not respond to
     this notice, any subsequent Late Delivery Payments that may become due as a
     result of such failure to respond will be reduced in accordance with the
     number of days taken by the Customer to respond to this notice.

3.3  If the Customer notifies BT that in its opinion the Service does not meet
     the Acceptance Criteria, BT will rectify the Service as soon as reasonably
     practicable in order that it meets the Acceptance Criteria.  If BT disputes
     the Customer's notice the matter will be regarded as a technical dispute
     for the purposes of Clause 14 and dealt with accordingly.

4.   BT EQUIPMENT AND SITE REQUIREMENTS, AND CUSTOMER'S CONTENT SIGNALS
     RESPONSIBILITIES

4.1  In order to be able to provide the Service, BT requires the Customer (at
     its own expense) to seek to arrange for the following at the Sites (up to
     the respective boundaries of the Sites):

 
                                                                              12

     (a)  obtain and maintain all necessary landlords' consents, planning
          permissions, way-leaves and other third party consents (including
          those of Playout Centre Owners,  and Transmitter Site Owners) needed
          to install, commission, maintain, operate and use the BT Equipment at
          the Sites and connect and operate the Service at the Sites, including
          consents for any necessary alterations to buildings;

     (b)  pay all necessary connection charges, site rents, or any other fees
          required or levies made by third parties (including landlords, Playout
          Centre Owners, and Transmitter Site Owners) in connection with
          operating the Service at the Sites;

     (c)  provide a suitable environment, accommodation, foundations, power
          supplies, connection points, support and other facilities at the
          Sites, including all necessary trunking, conduits and cable trays, as
          detailed in section 11 of the Functional Design Specification in
          accordance with the relevant installation standards;

          (d)  take up or remove, any fitted or fixed floor coverings, ceiling
               tiles, suspended ceiling and partition covers, as BT advises are
               reasonably necessary, and carry out afterwards any making good or
               decorator's work as required;

     and BT will not be liable for any failure to provide Service which is due
     or mainly due to the requirements described in Sub-clauses 4.1 (a), (b),
     (c) and (d) not being met in accordance with timescales as set out in the
     Implementation Plan or not being maintained for the duration of the
     Contract, in each case to the extent that such requirements are not met or
     maintained.

4.2  The Customer's Content Signals at the Distribution Input Interfaces will be
     delivered in compliance with the specifications and standards described in
     Schedule 8. Whilst it is acknowledged that failure to provide continuous
     Customer's Content Signals does not constitute a breach of this Contract,
     the Customer will use reasonable endeavours to provide continuous
     Customer's Content Signals at the Distribution Input Interfaces. BT will
     not be liable for any failure to provide Service which is due

 
                                                                              13

     or mainly due to Customer's Content Signals not being delivered
     continuously at the Distribution Input Interfaces, and/or not being
     delivered in compliance with the specifications and standards described in
     Schedule 8, in each case to the extent that Customer's Content Signals are
     not so delivered.  The Customer acknowledges that BT is not responsible for
     delivery of the Customer's Content Signals up to the Distribution Input
     Interfaces nor for onward carriage of the Customer's Content Signals from
     the Distribution Output Interfaces nor for any payments in relation
     thereto.

4.3  The Customer is responsible for the BT Equipment at all Sites and must not
     add to, modify or in any way interfere with such BT Equipment, nor allow
     anyone else (other than someone authorised by BT) to do so.  The Customer
     will be liable to BT for any loss of or damage to such BT Equipment, except
     where such loss or damage is due to fair wear and tear, an event covered by
     Clause 13, or is caused by BT or anyone acting on BT's behalf.

4.4  BT will not be liable for any failure to provide Service which is due or
     mainly due to any interference, modification, addition to, or loss or
     destruction of, BT Equipment at any Site except where such loss or damage
     is due to fair wear and tear or is caused by BT or anyone acting on BT's
     behalf.

5.   CONNECTION OF EQUIPMENT TO THE SERVICE

5.1  Any equipment connected to or used with the Service must be connected and
     used in accordance with any instructions, safety and security procedures
     applicable to the use of  that equipment.

5.2  Any equipment which is attached (directly or indirectly) to the Service
     must be technically compatible with the Service and approved for that
     purpose under any relevant legislation.

 
                                                                              14

6.   ACCESS AND SITE REGULATIONS

6.1  In order to be able to provide the Service, BT requires the Customer (at
     its own expense) to seek to arrange for access, for anyone duly authorised
     for this purpose by BT, to any Site and any other premises outside BT's
     control, at all reasonable times.  During a period from 3 months prior to
     each Service Preliminary Testing Date to each Service Delivery Date, the
     Customer will seek to arrange continuous 24-hour access for BT to relevant
     Sites, but in any event BT will require a minimum level of access to
     relevant Sites as described in Schedule 5. Subsequently, to carry out any
     major planned works or maintenance, BT will require 24-hour access at Sites
     from time to time on giving 3 days' notice.  BT may also require immediate
     24-hour access at Sites to rectify faults in Service.  Otherwise, BT will
     normally only require access during its usual working hours but may, on
     reasonable notice,  require access at other times which the Customer will
     seek to arrange.

6.2  BT employees and anyone acting on BT's behalf will observe the Customer's,
     or the relevant Site owner's, reasonable Site regulations in force from
     time to time as advised in writing to BT or drawn to BT's attention at the
     Site.  In the event of any conflict between such Site regulations and this
     Contract, this Contract will prevail.

6.3  The Customer will provide a suitable and safe working environment at all
     Sites for BT employees and anyone acting on BT's behalf.

6.4  BT will not be liable for any failure to provide Service which is due or
     mainly due to the access requirements described in Sub-clause 6.1 not being
     met, to the extent that such requirements are not met, or to a suitable and
     safe working environment not being provided for BT employees or for anyone
     acting on BT's behalf at any Site, to the extent that such environment is
     not provided.

 
                                                                              15

7.   USE OF THE SERVICE

7.1  It is the Customer's responsibility to obtain and keep in force any licence
     necessary for the Customer to use the Service, and not to permit any third
     party to use the Service where such third party does so in the absence of,
     or in breach of, any licence necessary for it to do so.  Without prejudice
     to the generality of the foregoing, this includes any licence or consent
     required from a Broadcasting Authority.

7.2  The Service must not be used in a way that:

     (a)  places BT in breach of BT's Licence, or in breach or contravention of
          the Telecommunications Act 1984, or of the Broadcasting Acts 1990 or
          1996, or gives rise to proceedings being taken against BT under
          Section 13 of the Broadcasting Act 1990;  or

     (b)  does not comply with any advice given by BT under Sub-clause 2.5 or
          which does not comply with Clause 5.

7.3  The Customer must indemnify BT against any claims or legal proceedings
     which are brought or threatened against BT :

     (a)  by any third party because the Service is used in breach of Sub-clause
          7.1 or 7.2; or

     (b)  by any third party the Customer permits to use the Service if the
          Service not available for use by that third party because of any
          failure of the Service;  or

     (c)  by any third party because the Customer's Content Signals are in
          breach of any duty of confidentiality or privacy, or infringe or
          prejudice any intellectual property rights, or are defamatory or
          obscene, or are otherwise unlawful.

 
                                                                              16

7.4  (a)  Where any of such claims or proceedings described in Sub-clause 7.3
          are of a criminal nature, or are likely to affect BT's Licence or any
          rights or obligations of BT arising out of BT's Licence, or BT's
          compliance with, breach or contravention of, or exercise of any rights
          under, the Telecommunications Act 1984 or the Broadcasting Acts 1990
          or 1996, BT will retain conduct and control of such claims or
          proceedings but it will be a condition of this indemnity that BT will
          notify the Customer promptly in writing (so far as practicable) of any
          such claims or proceedings, make no admission in relation to the same
          without prior consultation with the Customer, and keep the Customer as
          fully informed as practicable as to the progress of such claims or
          proceedings.

     (b)  In relation to any other such claims or proceedings, it will be a
          condition of this indemnity that BT must :-

          (i)    notify the Customer promptly in writing of such claim or
                 proceeding;

          (ii)   make no admission in relation to the same;

          (iii)  allow the Customer to conduct all negotiations and proceedings,
                 subject to regular consultation with BT, and give the Customer
                 all reasonable assistance in doing so (the Customer will pay
                 BT's reasonable costs and expenses for such assistance).

7.5  If as a result of use of Service in contravention of Sub-clause 7.1 or 7.2
     BT is prevented by an injunction or other order of a court of competent
     jurisdiction from providing the Service, or receives an order or
     instruction from a competent authority to cease providing the Service, or,
     in its reasonable opinion, after consultation with the Customer, is exposed
     to criminal liability if it continues to provide the Service, without
     prejudice to its right to terminate this Contract BT may suspend the
     Service until such court order is lifted or, in the case of criminal
     liability, BT receives such

 
                                                                              17

     assurances as BT reasonably considers to be sufficient that there will be
     no criminal liability arising from restoration of the Service.

7.6  The limitations and exclusions of liability contained in Clause 12 do not
     apply to this Clause.

8.   INTELLECTUAL PROPERTY RIGHTS

8.1  Where software is provided to enable the Customer to use the Service, BT
     grants the Customer a non-exclusive, non-transferable licence to use the
     software for that purpose.

8.2  The Customer will not, without BT's prior written consent, copy or (except
     as permitted by law) decompile or modify the software, nor copy the manuals
     or documentation.  The Customer will be entitled to a minimum of 3 copies
     of appropriate software, manuals and documentation.

8.3  The Customer will sign any agreement reasonably required by the owner of
     the copyright in the software to protect the owner's interest in that
     software, provided this does not result in any adverse financial
     consequences for the Customer.

9.   INTELLECTUAL PROPERTY RIGHT INDEMNITIES

9.1  BT will indemnify the Customer against all claims and proceedings arising
     from infringement of any intellectual property rights by reason of BT's
     provision of the Service to the Customer.  As a condition of this indemnity
     the Customer must:

     (a)  notify BT promptly in writing of any allegation of infringement;

     (b)  make no admission relating to the infringement;

     (c)  allow BT to conduct all negotiations and proceedings, subject to
          regular consultation with the Customer, and give BT all reasonable
          assistance in

 
                                                                              18

          doing so (BT will pay the Customer's reasonable costs and expenses for
          such assistance); and

     (d)  allow BT to modify the Service, or any item provided as part of the
          Service, so as to avoid the infringement, provided that  the
          modification does not materially affect the performance of the Service
          or increase the Customer's costs.  For these purposes any reduction in
          availability of Service will be regarded as material.

9.2  The indemnity in Sub-clause 9.1 does not extend to infringements caused by
     any Customer equipment, software, or services, or any combination of them,
     used in conjunction with the Service, except in all cases where such
     matters are permitted under this Contract.  The Customer will indemnify BT
     against all claims, proceedings and expenses arising from such
     infringements on the same terms (mutatis mutandis) as the indemnity by BT
     contained in Sub-clause 9.1.

9.3  The limitations and exclusions of liability contained in Clause 12 do not
     apply to this Clause.

10.  CONFIDENTIALITY

10.1 The parties will keep in confidence any information (whether written or
     oral) of a confidential nature (including software and manuals) obtained
     under this Contract and will not disclose that information to any person,
     other than those persons listed in Schedule 9  who need to know the
     information, without the written consent of the other party.

10.2 This Clause 10 will not apply to:

     (a)  any information which has been published, other than through a breach
          of this Contract;

     (b)  information lawfully in the possession of the recipient before the
          disclosure under this Contract took place;

 
                                                                              19

     (c)  information obtained from a third party who the recipient reasonably
          believed was free to disclose it; and

     (d)  information which a party is required to disclose to a competent
          regulatory authority, or information which a party is requested to
          disclose and, if it did not, could be required by law to do so.

10.3 This Clause 10 will remain in effect for as long as the information remains
     confidential, unless the parties otherwise agree.

11.  CHARGES AND DEPOSITS

11.1 The Charges for the Service, calculated in accordance with the BT Price
     List, are as set out in Schedule 2.  Charges will commence and fall due as
     specified in Schedule 2.

11.2 The Customer will pay the Charges within 45 days of the date of BT's
     invoice, provided that the invoice date will not be earlier than the
     payment dates described in Schedule 2.  BT may charge daily interest on
     late payments at a rate equal to 4% per annum above the base lending rate
     of Midland Bank plc.

12.  LIMITATION OF LIABILITY

12.1 BT accepts liability for late provision and the quality of the Service,
     other than where caused by an event covered by Clause 13, but only to the
     extent stated in Sub-clauses 2.2 and 2.3  and Schedule 3.

12.2 Each party accepts unlimited liability for death or personal injury
     resulting from its negligence.  Sub-clauses 12.3 and 12.4 do not apply to
     such liability.

12.3 Except for the Customer's obligations under Clauses 7, 11 and 15 and
     Schedule 2, and BT's obligations under Clause 9, neither party will be
     liable to the other, either in contract, tort (including negligence) or
     otherwise for any direct or indirect loss of profits, business or
     anticipated savings,  nor for any indirect or consequential loss or damage.

 
                                                                              20

12.4 Except for the Customer's obligations under Clauses 7, 11 and 15 and
     Schedule 2, and BT's obligations under Clause 9, Sub-clauses 2.2 and 2.3
     and Schedule 3, each party's liability to the other in contract, tort
     (including negligence) or otherwise in relation to this Contract is limited
     to (Pounds)2 million for any one incident or series of related incidents
     and to (Pounds)4 million for all incidents in any period of 12 months.

12.5 Each provision of this Contract, excluding or limiting liability,  operates
     separately. If any part is held by a court to be unreasonable or
     inapplicable, the other parts will continue to apply.

13.  MATTERS BEYOND EITHER PARTY'S REASONABLE CONTROL

13.1 If either party is unable to perform any obligation under this Contract
     because of a matter beyond that party's reasonable control (for the
     purposes of this Clause 13, a "Force Majeure event"), such as lightning,
     flood, exceptionally severe weather, fire, explosion, war, civil disorder,
     or acts of local or central Government or other competent authorities or
     events beyond the reasonable control of that party's suppliers, that party
     will have no liability to the other for that failure to perform.  The
     period of such excused non-performance will be limited to the duration of
     the Force Majeure event, and the party unable to perform any obligation
     because of the Force Majeure event  will give prompt notice to the other of
     any claim that the performance of its obligations under this Contract is
     prevented or adversely affected by a Force Majeure event (giving details so
     far as practicable of the nature of the Force Majeure event preventing or
     adversely affecting performance and the estimated duration of non-
     performance),  will give similar notice when its performance is resumed or
     ceased to be adversely affected, and will use all reasonable endeavours to
     recommence performance as soon as practicable, to mitigate and eliminate
     the consequences of the Force Majeure event, and to inform the other party
     of the steps which it is taking or proposing to take to do so.

 
                                                                              21

13.2 In the event of any failure by BT to provide Service to any single Region
     or to all Regions because of a Force Majeure event, except for any such
     Force Majeure event that  also constitutes a breach by the Customer of its
     obligations under this Contract, or a failure to meet BT's requirements as
     described in Clauses 4 and 6, or an event described in Sub-clause 4.4 (for
     the purposes of this Clause 13, an "Excluded Event") :-

     (a)  BT will consider all practicable options, depending on the nature and
          extent of any such failure, that are available to restore Service at
          the earliest practicable opportunity, including the use of alternative
          temporary facilities. Where BT considers the use of alternative
          temporary facilities would achieve an earlier restoration of Service
          than the repair of the normal facilities used to provide Service, BT
          will use all reasonable endeavours to provide such alternative
          temporary facilities as soon as reasonably practicable to provide the
          Service.  Such alternative temporary facilities will be deemed to be
          acceptable if they meet the Acceptance Criteria;

     (b)  where BT is unable to either repair the normal facilities used to
          provide Service or provide such alternative temporary facilities
          within 42 days of the commencement of the non-performance, the
          Customer will be entitled, by written notice expiring at the end of
          such 42-day period, to require this Contract to be amended such that
          the part of the Service affected by such non-performance is removed
          from this Contract and the Customer and BT are each relieved of their
          respective obligations to pay for and provide the part of the Service
          affected by such non-performance for the remainder of the term of the
          Contract;

     (c)  the Customer will only be liable to pay 50% of the annual rental
          charges (apportioned on a daily basis over a year) applying to the
          parts of the Service affected by such failure for the duration of such
          failure.

 
                                                                              22

13.3 For the avoidance of doubt, the provisions of Sub-clause 13.2 will not
     apply in the event of any failure by BT to perform any obligations because
     of an Excluded Event, and in such a case the Customer will remain liable
     for payment of the full Charges.

14.  ESCALATION AND DISPUTE RESOLUTION

14.1 If a dispute arises between the parties to this Contract, the parties will
     use their reasonable endeavours to settle the dispute in accordance with
     the following procedures:

          (a)  a dispute which has not been settled by the Customer's
     representative and the BT representative within 7 days of the matter being
     raised, may be escalated by either party to the first level by written
     notice to the other party;

          (b)  if the dispute is not resolved at the first level within 7 days
     of escalation either party may refer the dispute to the second level.

     The parties' representatives and the people to whom a dispute must be
     escalated at the first and second levels are as notified by either party to
     the other from time to time.

14.2 If the dispute is a technical dispute and is still not resolved 28 days
     after escalation to the second level then the dispute may be referred to a
     single arbitrator to be agreed by BT and the Customer, or , failing
     agreement, to be appointed by the President of the Institution of
     Electrical Engineers, in accordance with and subject to the provisions of
     the Arbitration Acts 1950 to 1979 or any statutory modification or re-
     enactment of those Acts.

14.3 If a dispute is other than a technical dispute and is not resolved after
     the procedures set out in Sub-Clause 14.1 have been followed then, if the
     parties agree, the dispute will be referred to a mediator:

 
                                                                              23

          (a)  the mediator will be appointed by agreement of the parties. In
               the event of a failure to agree within 3 days of a proposal by
               one party, the mediator will be appointed by the Centre for
               Dispute Resolution (CEDR);

          (b)  within 14 days of the appointment of the mediator the parties
               will meet with the mediator in order to agree the procedure to be
               adopted for the negotiations;

          (c)  all negotiations connected with the dispute will be conducted in
               confidence and without prejudice to the rights of the parties in
               any further proceedings;

          (d)  if the parties reach agreement on the resolution of the dispute
               the agreement will be put in writing and once signed by the
               parties will be binding on them;

          (e)  if the parties are not prepared to agree to the dispute being
               referred to a mediator or fail to reach agreement within 2 months
               of the mediator being appointed then either party may exercise
               any remedy that it has under this Contract.

15.  TERMINATION OF THIS CONTRACT BY NOTICE

15.1 This Contract will terminate automatically at the expiry of the Minimum
     Period unless both parties agree to extend or renew it, provided that the
     Customer may extend the duration of the Minimum Period of this Contract for
     a period of up to nine months upon giving BT written notice not later than
     the eleventh anniversary of the first Service Delivery Date.

15.2 If the Customer terminates this Contract or the Service during the Minimum
     Period (other than in accordance with a right under in this Contract) the
     Customer must pay BT a sum equal to the Charges for the remaining part of
     the Minimum Period, discounted, in recognition of the Charges being paid in

 
                                                                              24


     a lump sum to BT upon termination, by using the 3 month Sterling London
     Interbank Offer Rate quoted by Midland Bank plc, London on the date of
     termination.  Such sum will be paid by the Customer within 45 days of BT's
     invoice, and BT may charge daily interest on late payment in accordance
     with Sub-clause 11.2.

15.3 In mitigation of BT's losses on termination in breach by the Customer as
     described in Sub-clause 15.2 :-

(a)  BT will use all reasonable endeavours to contract to provide DTTV Service
     to other customers using the facilities used to provide the Service under
     this Contract, provided that BT will not be required to contract on a basis
     other than the standard prices, terms and conditions applicable to the DTTV
     Service.  Provided the Customer has paid the sum described in Sub-clause
     15.2, BT will pay to the Customer the money it obtains from any such other
     customer(s) (less BT's reasonable costs and expenses (if any) incurred in
     contracting with any such customer(s)) to the extent that the money
     obtained from such other customer(s) relates to facilities utilised to
     provide the Service under this Contract and provided that such payment(s)
     will not exceed in total the sum paid by the Customer under Sub-clause
     15.2.  Such payment(s) will be made by BT within 45 days of receipt, and
     the Customer may charge interest on late payment at a rate equal to 4% per
     annum above the base lending rate of Midland Bank plc;  and

(b)  If BT has not been able to so contract with another customer within 12
     months of such termination in breach by the Customer, BT will use all
     reasonable endeavours to redeploy and reutilise any of the facilities used
     to provide Service under this Contract on reasonable terms, subject to any
     regulatory considerations that may apply. Provided the Customer has paid
     the sum described in Sub-clause 15.2, BT will pay to the Customer any money
     it obtains from such redeployment or reutilisation less BT's reasonable
     costs and expenses (if any) incurred in such redeployment or reutilisation,
     provided that such payments will not exceed in total the sum paid by the
     Customer under Sub-clause 15.2. Such payment(s) will be made by BT

 
                                                                              25

     within 45 days of receipt, and the Customer may charge interest on late
     payment at a rate equal to 4% per annum above the base lending rate of
     Midland Bank plc.

15.4 In addition to any rights of termination specified elsewhere in this
     Contract, if the industry for digital terrestrial television services as a
     whole fails, such that all holders of Broadcasting Authority licences or
     other UK government authorisations permanently cease to provide digital
     television services and all Broadcasting Authority licences or other UK
     government authorisations are permanently terminated, surrendered,
     withdrawn or otherwise revoked or ceased, then :-

     (a)  if such event occurs on or after the fifth anniversary of the first
          Service Delivery Date, the Customer will be entitled to terminate the
          Contract on giving BT twelve calendar months' written notice, without
          liability for any further payment other than the Charges payable
          during the notice period;  or

     (b)  if such event occurs prior to the fifth anniversary of the first
          Service Delivery Date, the Customer may terminate this Contract on one
          month's written notice, subject to payment, prior to expiry of the
          notice, of a sum equivalent to all Charges payable by the Customer
          from the date such notice was given up to the fifth anniversary of the
          first Service Delivery Date, discounted by using the 3 month Sterling
          London Interbank Offer Rate quoted by Midland Bank plc, London on the
          date of termination.

15.5 If the Customer (other than as a result of an event described in Sub-clause
     16.1 (d) or as a result of any breach by the Customer of its Broadcasting
     Authority licence or other UK government authorisation) permanently ceases,
     in good faith, to provide one or more of the DTTV Multiplex Services for
     which it has a Broadcasting Authority licence or other UK government
     authorisation, such that its Broadcasting Authority licence or other UK
     government authorisation is permanently terminated, surrendered, withdrawn
     or otherwise revoked or ceased, and is not

 
                                                                              26

transferred or reissued to a connected company, then :-

     (a)  the Customer will use all reasonable endeavours in good faith to
          effect a transfer to any replacement licensee or other UK government
          authorisee of the part of the Service used to provide such permanently
          ceased DTTV Multiplex Service, but if such transfer does not take
          place, then

     (b)  the Customer will be entitled, by written notice, to require this
          Contract to be amended such that the part of the Service used to
          provide such permanently ceased DTTV Multiplex Service is removed from
          this Contract and the Customer and BT are each relieved of their
          respective obligations to pay for and provide such part of the Service
          from the fifth anniversary of the first Service Delivery Date, or if
          such notice is given after the fifth anniversary of the first Service
          Delivery Date, from twelve calendar months from the date of the
          notice.

16.  BREACHES OF THIS CONTRACT

16.1 Either party may terminate this Contract without notice if the other:

     (a)  commits a material breach of this Contract, which is capable of
          remedy, and fails to remedy the breach as soon as is reasonably
          practicable or in any event within 30 days of a written notice to do
          so; or

     (b)  commits a material breach of this Contract which cannot be remedied;
          or

     (c)  is repeatedly in breach of this Contract; or

     (d)  is the subject of a bankruptcy order, or becomes insolvent, or makes
          any arrangement or composition with or assignment for the benefit of
          their creditors, or goes into voluntary (otherwise than for
          reconstruction or

 
                                                                              27

     amalgamation) or compulsory liquidation or a receiver or administrator is
     appointed over their assets.

16.2 If the Customer commits any of the acts detailed in Sub-clauses 16.1 (a) or
     (c), or an event detailed in Sub-clause 16.1 (d) happens to the Customer,
     (except for acts or events covered by Sub-clause 7.5), BT may suspend the
     Service without prejudice to its right to terminate this Contract, provided
     that in the case of a suspension under Sub-clauses (a) or (c) BT must,
     after the expiry of 45 days, either resume Service or exercise its right to
     terminate this Contract.  Where the Service is suspended under this Clause,
     the Customer must pay the charges for the Service until this Contract is
     terminated.

16.3 If this Contract is terminated by BT during the Minimum Period because of
     an event specified in Sub-clause 16.1, the Customer must pay BT a sum
     calculated in accordance with Sub-clause 15.2.

16.4 If either party delays in acting upon a breach of this Contract that delay
     will not be regarded as a waiver of that breach.  If either party waives a
     breach of this Contract that waiver is limited to that particular breach.

17.  CHANGES TO THIS CONTRACT

17.1 Changes to the Service

     (a)  If the Customer wishes to change the location of the Playout Centres
          from which, or the Transmitter Sites to which, the Service is
          provided, or to make any other changes to the Service, it must notify
          BT in writing.

     (b)  The parties will discuss the proposed change.

     (c)  Within a reasonable time of receipt of a proposed change, or the date
          of the discussions under Sub-clause 17.1(b), BT will notify the
          Customer in writing whether or not BT can accommodate the change, and
          of the likely

 
                                                                              28

            timescale, financial, contractual, technical and other effects (if
            any) of the proposed change.

     (d)    Within a reasonable time of notification of the effects of a
            proposed change the Customer will advise BT whether it wishes this
            Contract to be amended to incorporate the change and BT will carry
            out such change on the terms agreed.

PROVIDED THAT BT agrees that, in any event :-

     (i)    where the Customer requires the Service to be provided to additional
            transmitter sites (other than the Transmitter Sites), subject to the
            maximum specified in paragraph 2 of Schedule 2, the formula to be
            applied to calculate the Charges for additional transmitter site
            access payable by the Customer in such circumstances will be that
            set out in paragraph 2 of Schedule 2, and BT will comply with any
            such request subject to completion of the appropriate Contract
            Change Order and to six months' prior written notice of the new
            Service Preliminary Testing Date;

     (ii)   where the Customer requests BT to reconfigure the Service to meet
            any changes to its (or its own customer DTTV Multiplex Service
            operators') regional distribution requirements, BT will consider
            such requests and if feasible, carry out any such changes, provided
            the Customer will pay any reasonable additional charge;

     (iii)  where appropriate, if the Customer requests BT to make changes to
            the Service which are for the benefit of one of the Customer's own
            customer digital television multiplex operators, any proposals BT
            makes for consequential adjustment of the Charges will be calculated
            solely in relation to such customer of the Customer.

 
                                                                              29

17.2    Changes to dates

17.2.1  Where the actual industry launch date for digital terrestrial television
        services, as agreed with all other customers for the DTTV Service, is
        later than 31 October 1998, the Customer will be entitled to substitute
        the earlier of such actual industry launch date or 31 January 1999 for
        31 October 1998 in the definition of the Minimum Period in Clause 1, so
        that the Minimum Period expires of the 12th anniversary of such
        substituted date, by giving three months' prior written notice to BT
        expiring not later than 31 October 1998. Where such notice is given:-

        (a)   the Service Preliminary Testing Dates, the Service Full Testing
              Dates, and the Service Delivery Dates (both for Phase 1 and Phase
              2 Transmitter Sites) will each be commensurately deferred unless
              the parties agree otherwise; and

        (b)   amendments reflecting such deferral of dates will be deemed to be
              made to Part 1 of Schedule 3, such that Late Delivery Payments
              will apply only in respect of the respective deferred dates; and

        (c)   the Implementation Plan will be amended to reflect such deferral
              of dates.

17.2.2  If the Customer is unable to use the Service at any particular Phase 2
        Transmitter Site due to inability to obtain frequency clearance to
        transmit from such Phase 2 Transmitter Site, then, subject to giving
        four months prior written notice expiring not later than the Service
        Preliminary Testing Date for such Phase 2 Transmitter Site, the Customer
        may either postpone delivery of Service to such Phase 2 Transmitter
        Site, or substitute an alternative transmitter site for delivery of the
        Service, provided that:-

        (a)   When frequency clearance is obtained in respect of such Phase 2
              Transmitter Site or any substituted transmitter site, the Customer
              will give BT six months' prior written notice of the new Service
              Preliminary Testing Date applying to the provision of Preliminary
              Testing Service to such

 
                                                                              30

            Phase 2 Transmitter Site, and the new Service Full Testing Date for
            provision of Full Testing Service to such deferred or substituted
            Phase 2 Transmitter Site will be not earlier than 31 days after the
            new Service Preliminary Testing Date, and the new Service Delivery
            Date for provision of fully operational Service to such deferred or
            substituted Phase 2 Transmitter Site will not be earlier than 30
            days after the new Service Full Testing Date; and

       (b)  amendments reflecting such deferral of dates will be deemed to be
            made to Part 1 of Schedule 3, such that Late Delivery Payments will
            apply only in respect of any delays beyond the respective deferred
            dates; and

        (c)  the Implementation Plan will be amended to reflect such deferral of
             dates.

17.2.3  If any changes are agreed to any of the Service Preliminary Testing
        Dates, Service Full Testing Dates, or Service Delivery Dates in relation
        to any Transmitter Site, then such changes will, unless otherwise
        agreed, have effect to change such other Dates in relation to that Site
        to reflect their current respective intervals, and to invoke a review of
        the Implementation Plan in order to make appropriate changes to reflect
        such revised Dates.

17.3    At agreed intervals of not less than 4 years the parties will
        collaborate on a technical review of the BT Equipment and other
        distribution equipment available on the market. Where opportunities are
        identified, from such technical review, to improve or enhance the
        Service, or to operate the Service more cost effectively the parties
        will co-operate in good faith. Should there be such an opportunity to
        operate the Service more cost-effectively BT will share with the
        Customer and other customers for the DTTV Service any benefits arising
        from such technology improvement with due regard to the need for BT to
        achieve a reasonable rate of return on both the item(s) of new BT
        Equipment which is/are required to be installed and of the original BT
        Equipment which is/are required to be replaced or is/are rendered
        obsolete as a result of the implementation of such improvements.

 
                                                                              31

17.4 Where the parties agree a change to this Contract it will be recorded in
     writing on a Contract Change Order Form in the form set out in Schedule 10
     and will then form part of this Contract when signed by both parties.

18.  INSURANCE

     Throughout the period of this Contract both parties will maintain
     appropriate insurance against loss, damages, claims or actions arising from
     personal injury, public liability and any other liability for which either
     is required by law to insure.

19.  ASSIGNMENT

     Neither party  may assign or transfer any of their rights or obligations
     under this Contract, without the written consent of the other, except that
     BT may assign or transfer its rights or obligations (or both) to a BT Group
     Company without consent, and BT will not unreasonably refuse consent to the
     Customer's transferring its rights and obligations under this Contract to
     another DTTV Multiplex Service operator or to a Group Company of the
     Customer.

20.  ENTIRE AGREEMENT

20.1 This Contract contains the whole agreement between the parties and
     supersedes all previous written or oral agreements relating to its subject
     matter.

20.2 The parties  acknowledge and agree that:

     (a)  they have not been induced to enter into this Contract by any
          representation, warranty or other assurance not expressly incorporated
          into it; and

     (b)  in connection with this Contract their only rights and remedies in
          relation to any representation, warranty or other assurance are for
          breach of this

 
                                                                              32

          Contract and that all other rights and remedies are excluded, except
          in the case of fraud.

21.  NOTICES

     Notices given under this Contract must be in writing and may be delivered
     by hand or by courier, or sent by telex or first class post to the
     following addresses:

     (a)  to BT: Senior Business Manager Terrestrial Services, Broadcast
          Services, 125 Shaftesbury Avenue, London WC2H 8BE or any alternative
          address which BT notifies to the Customer;

     (b)  to the Customer at the address to which the Customer asks BT to send
          invoices, the address of the Customer's premises or, if the Customer
          is a limited company, its registered office.


Signed on behalf of
British Telecommunications plc                /s/ J. P. Swingewood
                                             ...................................


Name                                              J. P. Swingewood
                                             ...................................


Position                                     Director Multimedia Services
                                             ...................................



Signed on behalf of
Castle Transmission International Ltd        ...................................


Name:     Alan Rees                            /s/ Alan Rees
                                             ...................................
          Chief Operating Officer                       (signature)



 
                                                                              33

                                   SCHEDULE 1
                                   ----------

                           DESCRIPTION OF THE SERVICE
                           --------------------------

INDEX
- -----

Part 1 :       Service
Part 2 :       Transmitter Sites, Transmitter Site Owners, Service Preliminary
               Testing Dates, Service Full Testing Dates, Service Delivery Dates
Part 3 :       Playout Centres
Part 4 :       Regional Distribution from Playout Centres to Transmitter Sites
Part 5 :       Transmitter Site Provisioning Plans

 
                                                                              34

                                   SCHEDULE 1
                                   ----------

                               PART 1:    SERVICE
                               ------------------

1.   GENERAL

1.1  The Service is a uni-directional service, provided via a diversely routed
     network for the distribution of the Customer's Content Signals provided
     from a Distribution Input Interface to a Distribution Output Interface, in
     accordance with the description as detailed in this Schedule and the
     Functional Design Specification.

1.2  The DTTV Distribution Network will provide capacity for the carriage of
     Service Information ("SI") from a central SI Collation Site, which will be
     located at either British Digital Broadcasting Plc's premises at Marco Polo
     House, 346, Queenstown Road, London SW8 4NE, or at the Channel 4 Television
     Corporation's premises at Channel 4, 124, Horseferry Road, London SW1P 2TX
     (to be agreed) ("the central SI Collation Site"), to Transmitter Sites
     designated as Service Insertion Points ("SIPs"). BT will accept the
     Customer's DTTV Multiplex Services feeds and deliver these signals to
     agreed main and daughter Transmitter Sites.  The SI capacity will be
     diversely routed.  The network design will ensure that the two feeds are
     physically and electrically separate.  BT will provide 5 Mbit/s of capacity
     relating to all digital multiplexes from the central SI Collation Site
     throughout the DTTV Distribution Network for use by all customers for the
     DTTV Service.

     Part 4 of Schedule 1 provides a list of SIP Transmitter Sites and their
     associated daughter Transmitter Sites, which may be subject to review,
     following discussion by the Digital Network Group.

     The industry's arrangements for the carriage of SI have yet to be defined.
     The exact arrangements will be defined when the solution is known. Provided
     that such arrangements are notified to BT by not less than four

 
                                                                              35

      months prior to the first Service Delivery Date, BT will provide capacity
      to the Customer for carriage of SI to each Transmitter Site by its
      respective Service Delivery Date.

1.3   Service monitoring and management systems will provide both BT and the
      Customer with appropriate network status and management information in
      accordance with the Network Management Service described in Schedule 7.
      The Network Management Service will be available to each Transmitter Site
      from its respective Service Full Testing Date.

1.4   Initially, the Service will be provided via two unswitched DVB ASI
      transport streams at each Distribution Output Interface, but BT will
      provide, by no later than the expiry of twelve calendar months after the
      first Service Delivery Date, an output switching facility at each
      Transmitter Site and RPOC (but not at Playout Centres) providing two
      continuous DVB ASI transport streams such that, in the event of a single
      failure, output switching and restoration can take place, provided that,
      in respect of Transmitter Sites where the Service Full Testing Date occurs
      after the expiry of twelve calendar months after the first Service
      Delivery Date, such switching facility will be made available on their
      respective Service Full Testing Dates. Such switching facility will not
      include any switching or restoration associated with SI.

2.    CUSTOMER-SPECIFIC SERVICE DESCRIPTION

2.1   Service for Customer's Content Signals originating from BDB

2.1.1 The Customer will provide two identical feeds of each of the Customer's
      Content Signals in respect of each of BDB's three DTTV Multiplex Services
      to BT Distribution Input Interfaces (designated Feed A and Feed B) for
      interconnection with BT provided ASI multiplexes located within the BDB
      London Playout Centre detailed in Schedule 1, Part 3, Table 1.

2.1.2 Access to the DTTV Distribution Network will be provided from BDB's London
      Playout Centre via seperately routed fibre optic circuits. One route will
      terminate

 
                                                                              36

       at a BT CNAP. The second route will terminate at a (separate) BT SNAP.

2.1.3  The Customer's Content Signals will be conveyed throughout the diversely
       routed fibre optic DTTV Distribution Network capacity via further CNAPs
       and SNAPs. The network will be designed such that the A Feed and B Feed
       will be physically and electrically separate.

2.1.4  The DTTV Distribution Network will support a maximum of the seven
       regional feeds for BDB set out in the Table at the end of this paragraph
       2.1 below. Each regional feed will be carried to the relevant CNAP and
       SNAP where it will be combined with the appropriate regional feed for the
       Customer's Content Signals originating from the BBC.

2.1.5  At the terminal CNAP and SNAP for each region, diversely routed capacity
       will be provided by BT to convey the A and B Feed to the SIP Transmitter
       Sites and their respective associated Dependent Transmitter Sites shown
       in Schedule 1, Part 4, Table 1. The network design will be designed such
       that the two feeds will be physically and electrically separate. At
       Sites, BT will aim for physical separacy of A and B Feeds of 4 metres,
       unless constrained by local conditions or restrictions imposed by Site
       owners.

2.1.6  Each of the three BDB DTTV Multiplex Services will have a nominal total
       bitrate of 24.1 Mbit/s (together totalling 72 Mbit/s from BDB's London
       Playout Centre), being useable bitrate without error correction or system
       overheads, but excluding SI capacity.

2.1.7  Subject to paragraph 1.2 above, the DTTV Distribution Network will
       provide capacity for the carriage of SI from the central SI Collation
       Site to Transmitter Sites. At the respective Transmitter Sites shown in
       column 2, Table 2, Part 4, Schedule 1 ("SIP Transmitters") BT will accept
       feeds for SI for both BDB and BBC DTTV Multiplex Services and deliver
       them to their respective associated Transmitter Sites shown in column 2,
       Table 2, Part 4, Schedule 1 ("Dependent Transmitters"). The network will
       be designed such that the two feeds will be physically and electrically
       separate.

 
                                                                              37

2.1.8  Circuits from CNAPs and SNAPs to Transmitter Sites will be provided using
       a mixture of fibre, line systems and radio technology. Part 5 of Schedule
       1 sets out provisioning plans for each Transmitter Site.

                                     TABLE



         REGION            DESTINATION 1    DESTINATION     DESTINATION   DESTINATION 
                                                  2               3            4    
       ------------------------------------------------------------------------------
                                                                     
       1  Midlands         Birmingham                                               
       ------------------------------------------------------------------------------
       2  South            Southampton         Plymouth       Jersey/1/             
       ------------------------------------------------------------------------------
       2  South            Bristol                                                  
       ------------------------------------------------------------------------------
       2  South            Norwich                                                  
       ------------------------------------------------------------------------------
       3  North            Manchester          Leeds          Carlisle     Newcastle 
       ------------------------------------------------------------------------------
       4  Scotland         Glasgow             Aberdeen                             
       ------------------------------------------------------------------------------
       5  N Ireland        Belfast                                                  
       ------------------------------------------------------------------------------
       6  Wales            Cardiff                                                  
       ------------------------------------------------------------------------------
       7  London           London                                                   
       ------------------------------------------------------------------------------


NOTES :
 
/1/    Exact arrangements for Jersey are under discussion

2.2    Service for Customer's Content Signals originating from BBC

2.2.1  The Customer will provide two identical feeds of the Customer's Content
       Signals in respect of the BBC's DTTV Multiplex Service from each of the
       Playout Centres detailed in Schedule 1, Part 3, Table 2 to BT
       Distribution Input Interfaces (designated Feed A and Feed B) for
       interconnection with BT provided ASI multiplexes located within each
       Playout Centre.

2.2.2  Access to the DTTV Distribution Network will be provided from each
       Playout Centre via diversely routed fibre optic circuits. One route will
       terminate at a BT CNAP. The second route will terminate at a (separate)
       BT SNAP.

2.2.3  At the terminal CNAP and SNAP for each region, diversely routed capacity
       will be provided by BT to convey the A and B Feed to the SIP Transmitter
       Sites and their

 
                                                                              38

       respective associated Dependent Transmitter Sites shown in Schedule 1,
       Part 4, Table 2. The network will be designed such that the two feeds
       will be physically and electrically separate. At Sites, BT will aim for
       physical separacy of A and B Feeds of 4 metres, unless constrained by
       local conditions or restrictions imposed by Site owners.

2.2.4  The BBC DTTV Multiplex Service will have a nominal total bitrate of 24.1
       Mbit/s from each Playout Centre, being useable bitrate without error
       correction or system overheads, but excluding SI capacity. Where there
       are sub-regions, two may be combined into a single feed distribution feed
       with the appropriate feed delivered to each Transmitter Site.

2.2.5  For SI capacity, see paragraphs 1.2 and 2.1.7 above.

2.2.6  Circuits from CNAPs and SNAPs to Transmitter Sites will be provided using
       a mixture of fibre, line systems and radio technology. Part 5 of Schedule
       1 sets out provisioning plans for each Transmitter Site.

3.     PRELIMINARY TESTING SERVICE AND FULL TESTING SERVICE

3.1    Preliminary Testing Service will consist of one feed of Customer's
       Content Signals to the relevant Transmitter Sites. BT will make
       reasonable endeavours to provide two feeds of Customer's Content Signals
       (Feed A and Feed B), available for network testing by the Customer, to
       the relevant Transmitter Sites, but in the event of only one such feed
       being available this will be acceptable for the purposes of the
       Preliminary Testing Service. Preliminary Testing Service will not include
       SI or Network Management Service.

3.2    Full Testing Service will consist of the provision of two feeds of
       Customer's Content Signals (Feed A and Feed B), available for network
       testing by the Customer, to the relevant Transmitter Sites. Full Testing
       Service will include Network Management Service, but will not include SI.

3.3    Fully operational Service will consist of the provision of two feeds of
       Customer's Content Signals (Feed A and Feed B) to the relevant
       Transmitter Sites.

 
                                                                              39

     Fully operational Service will include output switching facilities, to be
     introduced in accordance with paragraph 1.4 above, and will also include
     Network Management Service and, subject to paragraph 1.2 above, SI.

4.   DISTRIBUTION INPUT AND OUTPUT INTERFACE CHARACTERISTICS

4.1  Distribution Input Interfaces will comply with the following:-

     4.1.1  Electrical:-

          (a)  Customer's transport streams must be DVB compliant in ASI format,
               being non-interleaved, byte stuffed ASI streams optimised for
               maximum linearity conforming to DVB BLUE BOOK A010 REV 1.0
               "Interfaces for CATV/SMATV Headends and Similar Professional
               Equipment", May 1997.  (BT cannot provide full monitoring of the
               ASI streams if data interleaving is present);

          (b)  signals to preferably have RS encoding 188/204;

          (c)  termination / source impedance to be 75 ohms unbalanced;

          (d)  the input signal will preferably  be continuous and will be error
               free;

4.1.2  Physical:-

          (a)  a MUSA patch panel will be provided with each set of BT terminal
               equipment.  The patch panel will act as the Customer to BT signal
               interface point;

          (b)  all Customer connections will be by means of BNC connectors at
               the rear of the patch panel;

          (c)  test access points will be provided using MUSA U-Links.

 
                                                                              40

4.2  Distribution Output Interfaces will comply with the following:-

4.2.1  Electrical:-

          (a)  signal interface will be DVB ASI as DVB BLUE BOOK A010 REV 1.0
               "Interfaces for CATV/SMATV Headends and Similar Professional
               Equipment", May 1997;

          (b)  termination / source impedance will be 75 ohms unbalanced;

4.2.2  Physical:-

          (a)  a MUSA patch panel will be provided near each set of BT terminal
               equipment as a BT to Customer signal hand over point;

          (b)  all Customer connections will be by means of BNC connectors at
               the rear of the patch panels;

          (c)  test access points will be provided using MUSA U-Links.

 
                                                                              41

                                  SCHEDULE 1
                                  ----------

   PART 2 : TRANSMITTER SITES, TRANSMITTER SITE OWNERS, SERVICE PRELIMINARY
   ------------------------------------------------------------------------
      TESTING DATES, SERVICE FULL TESTING DATES, SERVICE DELIVERY DATES.
      -----------------------------------------------------------------

PHASE 1
- -------



                                             
                                             SERVICE                           
NUMBER    TRANSMITTER      TRANS-            PRELIMINARY  SERVICE     SERVICE  
          SITES            MITTER SITE       TESTING      TESTING     DELIVERY 
                           OWNER             DATES        DATES       DATES     
                                                       
1         Pontop Pike      CTI               [*]          [*]         [*]
                                                                    
2         Belmont          NTL               [*]          [*]         [*]
                                                                    
3         Wenvoe           CTI               [*]          [*]         [*]
                                                                    
4         Blackhill        NTL               [*]          [*]         [*]
                                                                    
5         Caldbeck         NTL               [*]          [*]         [*]
                                                                    
6         Caradon Hill     NTL               [*]          [*]         [*]
                                                                    
7         Emley Moor       NTL               [*]          [*]         [*]
                                                                    
8         Durris           NTL               [*]          [*]         [*]
                                                                    
9         Craigkelly       NTL               [*]          [*]         [*]
                                                                    
10        Winter Hill      NTL               [*]          [*]         [*]
                                                                    
11        Stockland Hill   NTL               [*]          [*]         [*]
                                                           
                                                                   
[*] Indicates where text has been omitted pursuant to a request for confidential
    treatment. The omitted text has been filed with the Securities and Exchange
    Commission separately.

 
                                                                              42
                                                                   
                                                            
                                                          
NUMBER    TRANSMITTER        TRANS-          SERVICE                           
          SITES              MITTER          PRELIMINARY  SERVICE     SERVICE 
                             SITE            TESTING      TESTING     DELIVERY
                             OWNER           DATES        DATES       DATES    
                                                          
12        Sutton Coldfield   CTI             [*]          [*]         [*]  
                                                                         
13        Crystal Palace     CTI             [*]          [*]         [*]  
                                                                           
14        Bilsdale           CTI             [*]          [*]         [*]  
                                                                           
15        Mendip             CTI             [*]          [*]         [*]  
                                                                           
16        Waltham            CTI             [*]          [*]         [*]  
                                                                           
17        Hannington         CTI             [*]          [*]         [*]  
                                                                           
18        Divis              CTI             [*]          [*]         [*]  
                                                                           
19        Rowridge           CTI             [*]          [*]         [*]  
                                                                           
20        Sandy Heath        NTL             [*]          [*]         [*]  
                                                                           
21        Oxford             CTI             [*]          [*]         [*]  
                                                                           
22        Moel y Parc        CTI             [*]          [*]         [*]  
                                                                           
23        Sudbury            CTI             [*]          [*]         [*]  
                                                                           
24        Fremont Point      NTL             [*]          [*]         [*]   
                                                     
                                                             
                                                             
*THE AGREEMENT OF THE DATES FOR THIS TRANSMITTER SITE IS SUBJECT TO JERSEY
- --------------------------------------------------------------------------
TELECOM DELIVERY WHICH BT WILL USE ALL REASONABLE EFFORTS TO OBTAIN.
- -------------------------------------------------------------------
                                                             
[*] Indicates where text has been omitted pursuant to a request for confidential
    treatment. The omitted text has been filed with the Securities and Exchange
    Commission separately.

 
                                                                              43
                                                             
PHASE 2                                                      
- -------                                                      
                                                             
                                       SERVICE     
                                     PRELIMINARY  SERVICE     SERVICE
NUMBER    TRANSMITTER      TRANS-MITTER       TESTING      TESTING     DELIVERY
          SITES            SITE OWNER         DATES        DATES       DATES    
                                                         
25        Bluebell Hill    CTI                [*]          [*]         [*]  
                                                              
26        Tacolneston      CTI                [*]          [*]         [*]  
                                                              
27        Darvel           NTL                [*]          [*]         [*]  
                                                                      
28        Angus            NTL                [*]          [*]         [*]  
                                                                           
29        Midhurst         CTI                [*]          [*]         [*] 
                                                                           
30        Selkirk          NTL                [*]          [*]         [*] 
                                                                           
31        Rumster Forest   NTL                [*]          [*]         [*] 
                                                                           
32        Kilvey Hill      CTI                [*]          [*]         [*] 
                                                                           
33        Ridge Hill       NTL                [*]          [*]         [*] 
                                                                           
34        Saddleworth      NTL                [*]          [*]         [*] 
                                                                           
35        Heathfield       CTI                [*]          [*]         [*] 
                                                                          
36        Blaenplwyf       CTI                [*]          [*]         [*] 
                                                                           
37        Beacon Hill      NTL                [*]          [*]         [*] 
                                                                           
38        Carmel           CTI                [*]          [*]         [*] 
                                                                           
39        Sheffield        CTI                [*]          [*]         [*] 
                                                             
                                                                     
[*] Indicates where text has been omitted pursuant to a request for confidential
    treatment. The omitted text has been filed with the Securities and Exchange
    Commission separately.

 

                                                              
                                                            
                                             SERVICE     
                                             PRELIMINARY  SERVICE     SERVICE
NUMBER    TRANSMITTER      TRANS-MITTER      TESTING      TESTING     DELIVERY  
          SITES            SITE OWNER        DATES        DATES       DATES   
                                                        
40        Limavady         CTI               [*]          [*]         [*] 
                                                                     
41        Nottingham       NTL               [*]          [*]         [*] 
                                                                     
42        Dover            NTL               [*]          [*]         [*] 
                                                                     
43        Whitehawk Hill   CTI               [*]          [*]         [*] 
                                                                     
44        Fenham           CTI               [*]          [*]         [*] 
                                                                     
45        Llandona         CTI               [*]          [*]         [*] 
                                                                     
46        Guildford        CTI               [*]          [*]         [*] 
                                                                     
47        Presely          NTL               [*]          [*]         [*] 
                                                                     
48        Rosemarkie       CTI               [*]          [*]         [*] 
                                                                     
49        Hemel            CTI               [*]          [*]         [*] 
          Hempstead                                                  
                                                                     
50        Lancaster        NTL               [*]          [*]         [*] 
                                                                     
51        Bristol IC       CTI               [*]          [*]         [*] 
                                                                     
52        Idle             NTL               [*]          [*]         [*] 
                                                                     
53        Brougher         CTI               [*]          [*]         [*] 
          Mountain                                                   
                                                                     
54        Redruth          CTI               [*]          [*]         [*] 
                                                                     
55        Hastings         CTI               [*]          [*]         [*] 
                                                                     
56        Chesterfield     NTL               [*]          [*]         [*] 
                                                                     
57        Bromsgrove       CTI               [*]          [*]         [*] 
                                                             
                                                                     
[*] Indicates where text has been omitted pursuant to a request for confidential
    treatment. The omitted text has been filed with the Securities and Exchange
    Commission separately.

 
                                                                              45
                                                                     
                                                              
                                                            
                                             SERVICE                         
                                             PRELIMINARY  SERVICE   SERVICE
NUMBER    TRANSMITTER      TRANS-MITTER      TESTING      TESTING   DELIVERY
          SITES            SITE OWNER        DATES        DATES     DATES   
                                                      
58        Pendle Forest    NTL               [*]          [*]       [*] 
                                                                     
59        Chatton          NTL               [*]          [*]       [*] 
                                                                     
60        Reigate          CTI               [*]          [*]       [*] 
                                                                     
61        Malvern          CTI               [*]          [*]       [*] 
                                                                     
62        Rosneath         NTL               [*]          [*]       [*] 
                                                                     
63        Bristol Kings    CTI               [*]          [*]       [*] 
          Weston                                                        
                                                                        
64        Fenton           CTI               [*]          [*]       [*] 
                                                                        
65        Storeton         CTI               [*]          [*]       [*] 
                                                                        
66        Tunbridge Wells  CTI               [*]          [*]       [*] 
                                                                        
67        The Wrekin       CTI               [*]          [*]       [*] 
                                                                        
68        Plympton         NTL               [*]          [*]       [*] 
                                                                        
69        Salisbury        CTI               [*]          [*]       [*] 
                                                                        
70        Larkstoke        CTI               [*]          [*]       [*] 
                                                                        
71        Keighly          NTL               [*]          [*]       [*] 
                                                                        
72        Huntshaw Cross   NTL               [*]          [*]       [*] 
                                                                        
73        Knock More       NTL               [*]          [*]       [*] 
                                                                        
74        Aberdare         CTI               [*]          [*]       [*] 
                                                                        
75        Eitshal          CTI               [*]          [*]       [*]  
                                                             
                                                                     
[*] Indicates where text has been omitted pursuant to a request for confidential
    treatment. The omitted text has been filed with the Securities and Exchange
    Commission separately.

 
                                                                              46

 
                                                                      
                                            
                                            SERVICE                          
NUMBER    TRANSMITTER      TRANS-           PRELIMINARY  SERVICE     SERVICE 
          SITES            MITTER SITE      TESTING      TESTING     DELIVERY
                           OWNER            DATES        DATES       DATES   
                                                        
76        Brierley Hill    CTI               [*]          [*]          [*]
                                                                       
77        Olivers Mount    CTI               [*]          [*]          [*]
                                                                       
78        Keelylang Hill   CTI               [*]          [*]          [*]
                                                                       
79        Pontypool        CTI               [*]          [*]          [*]
                                                                       
80        Torosay          CTI               [*]          [*]          [*]
                                                                       
81        Bressay          CTI               [*]          [*]          [*]


[*] Indicates where text has been omitted pursuant to a request for confidential
    treatment. The omitted text has been filed with the Securities and Exchange
    Commission separately.

 
                                                                              47

                                   SCHEDULE 1
                                   ----------

                           PART 3 :  PLAYOUT CENTRES
                           -------------------------

                         TABLE 1 :  BDB PLAYOUT CENTRE
                         -----------------------------
                                        
British Digital Broadcasting
Marco Polo House
346, Queenstown Road,
London, SW8 4NE.

 
                                                                              48

                                   SCHEDULE 1
                                   ----------

                           PART 3 :  PLAYOUT CENTRES
                           -------------------------

                         TABLE 2 :  BBC PLAYOUT CENTRES
                         ------------------------------
                                        
BBC Belfast
Broadcasting House,
Ormeau Avenue,
Belfast BT2 8HQ
 
BBC Bristol
Broadcasting House,
Whiteladies Road,
Bristol BS8 2LR

BBC Cambridge
Broadcasting House,
104 Hills Road,
Cambridge CB2 1LD

BBC Cardiff
Broadcasting House,
Llandaff,
Cardiff CF5 2YQ

BBC Glasgow
Queen Margaret Drive,
Glasgow  G12 8DG

BBC Leeds
Broadcasting Centre,
Woodhouse Lane,
Leeds LS2 9PX

BBC Manchester
New Broadcasting House,
PO Box 27,
Oxford Road,
Manchester M60 1SJ

BBC Newcastle
Broadcasting Centre,
Barrack Road,
Newcastle upon Tyne  NE99 2NE

 
                                                                              49

BBC Norwich
St. Catherine's Close,
All Saints' Green,
Norwich,
Norfolk NR1 3ND

BBC Nottingham
Island Business Park,
London Road,
Nottingham [POSTCODE TBA]

BBC Pebble Mill
Broadcasting Centre,
Pebble Mill Road,
Birmingham B5 7QQ

BBC Plymouth
Broadcasting House,
Seymour Road,
Mannamead,
Plymouth PL3 5BD

BBC Southampton
Broadcasting House,
Havelock  Road,
Southampton SO14 7PU

BBC TV Centre
White City
London W12

 
                                                                              50

                                   SCHEDULE 1
                                   ----------

   PART 4 :  REGIONAL DISTRIBUTION FROM PLAYOUT CENTRES TO TRANSMITTER SITES
   -------------------------------------------------------------------------

                      TABLE 1 :  BDB REGIONAL DISTRIBUTION
                      ------------------------------------



- --------------------------------------------------------------------------------------
BDB REGION     SIP TRANSMITTER          DEPENDENT TRANSMITTERS                                            
- --------------------------------------------------------------------------------------                   
                                                                                                
London         Crystal Palace TS        Guildford TS, Reigate TS, Hemel Hempstead TS                     
- --------------------------------------------------------------------------------------
South          Heathfield TS            Hastings TS                                                      
- --------------------------------------------------------------------------------------
Midlands       Beckley TS                                                                                
- --------------------------------------------------------------------------------------
Midlands       Ridge Hill TS                                                                             
- --------------------------------------------------------------------------------------
Midlands       Sutton Coldfield TS      Bromsgrove TS, Larkstoke TS, Brierley Hill TS,
                                        The Wrekin TS, Fenton TS, Malvern TS                             
- --------------------------------------------------------------------------------------
Midlands       Waltham TS               Nottingham TS                                                    
- --------------------------------------------------------------------------------------
N. Ireland     Divis TS                 Limavady TS, Brougher Mt. TS                                     
- --------------------------------------------------------------------------------------
North          Belmont TS                                                                                
- --------------------------------------------------------------------------------------
North          Bilsdale TS                                                                               
- --------------------------------------------------------------------------------------
North          Caldbeck TS                                                                               
- --------------------------------------------------------------------------------------
North          Emley Moor TS            Idle TS, Olivers Mount TS, Keighley TS                           
- --------------------------------------------------------------------------------------
North          Pontop Pike TS           Fenham TS, Chatton TS                                            
- --------------------------------------------------------------------------------------
North          Sheffield TS             Chesterfield TS                                                  
- --------------------------------------------------------------------------------------
North          Winter Hill TS           Saddleworth TS, Storeton TS, Pendle Forest                       
                                        Lancaster TS,                                                                
- --------------------------------------------------------------------------------------
Scotland       Black Hill TS            Craigkelly TS, Torosay TS, Roseneath TS,                         
                                        Darvel TS                                                        
- --------------------------------------------------------------------------------------
Scotland       Durris TS                Eitshall TS, Angus TS, Rosemarkie TS, Rumster                    
                                        Forest TS, Bressay TS, Knocksmore TS,                            
                                        Keelylang TS                                                     
- --------------------------------------------------------------------------------------
North          Selkirk TS                                                                                
- --------------------------------------------------------------------------------------
South          Bluebell Hill TS         Tunbridge Wells TS, Dover TS                                     
- --------------------------------------------------------------------------------------
South          Fremont Point TS                                                                          
- --------------------------------------------------------------------------------------
South          Hannington TS                                                                             
- --------------------------------------------------------------------------------------
South          Mendip TS                Bristol KW TS, Bristol IC TS                                     
- --------------------------------------------------------------------------------------
South          Rowridge TS              Salisbury TS, Midhurst TS, Whitehawk Hill TS                     
- --------------------------------------------------------------------------------------
South          Sandy Heath TS                                                                            
- --------------------------------------------------------------------------------------
South          Stockland Hill TS        Beacon Hill TS                                                   
- --------------------------------------------------------------------------------------
South          Redruth TS                                                                                
- --------------------------------------------------------------------------------------
South          Huntshaw Cross TS                                                                         
- --------------------------------------------------------------------------------------
South          Caradon Hill TS          Plympton TS                                                      
- --------------------------------------------------------------------------------------
South          Tacolneston TS           Sudbury TS                                                       
- --------------------------------------------------------------------------------------
Wales          Wenvoe TS                Presely TS, Llandonna TS, Carmel TS,                             
                                        Blaenplwyf TS, Aberdare TS, Pontypool TS,                        
                                        Moel y Parc TS, Kilvey Hill TS                                    
- --------------------------------------------------------------------------------------


 
                                                                              51

                                  SCHEDULE 1
                                  ----------
   PART 4 :  REGIONAL DISTRIBUTION FROM PLAYOUT CENTRES TO TRANSMITTER SITES
   -------------------------------------------------------------------------
                     TABLE 2 :  BBC REGIONAL DISTRIBUTION
                     ------------------------------------



- -------------------------------------------------------------------------------------- 
BBC SOURCE     SIP TRANSMITTER          DEPENDENT TRANSMITTERS                           
- --------------------------------------------------------------------------------------
                                                                            
Belfast        Divis TS                 Limavady TS, Brougher Mt. TS                 
- --------------------------------------------------------------------------------------
Birmingham     Ridge Hill TS                                                         
- --------------------------------------------------------------------------------------
Birmingham     Sutton Coldfield TS      Bromsgrove TS, Larkstoke TS, Brierley Hill   
                                        TS, The Wrekin TS, Fenton TS, Malvern TS     
- --------------------------------------------------------------------------------------
Bristol        Mendip TS                Bristol KW TS, Bristol IC TS                 
- --------------------------------------------------------------------------------------
Cambridge      Sandy Heath TS                                                        
- --------------------------------------------------------------------------------------
Cardiff        Wenvoe TS                Presely TS, Llandonna TS, Carmel TS,         
                                        Blaenplwyf TS, Aberdare TS, Pontypool TS,    
                                        Moel y Parc TS, Kilvey Hill TS               
- --------------------------------------------------------------------------------------
Glasgow        Black Hill TS            Craigkelly TS, Torosay TS, Roseneath TS,     
                                        Darvel TS                                    
- --------------------------------------------------------------------------------------
Glasgow        Durris TS                Eitshall TS, Angus TS, Rosemarkie TS,        
                                        Rumster Forest TS, Bressay TS, Knocksmore    
                                        TS, Keelylang Hill TS                        
- --------------------------------------------------------------------------------------
Glasgow        Selkirk TS                                                            
- --------------------------------------------------------------------------------------
Leeds          Belmont TS                                                            
- --------------------------------------------------------------------------------------
Leeds          Emley Moor TS            Idle TS, Olivers Mount TS, Keighley TS       
- --------------------------------------------------------------------------------------
Leeds          Sheffield TS             Chesterfield TS                              
- --------------------------------------------------------------------------------------
Manchester     Winter Hill TS           Saddleworth TS, Storeton TS, Pendle Forest   
                                        TS, Lancaster TS                             
- --------------------------------------------------------------------------------------
Newcastle      Bilsdale TS                                                           
- --------------------------------------------------------------------------------------
Newcastle      Caldbeck TS                                                           
- --------------------------------------------------------------------------------------
Newcastle      Pontop Pike TS           Fenham TS, Chatton TS                        
- --------------------------------------------------------------------------------------
Norwich        Tacolneston TS           Sudbury TS                                   
- --------------------------------------------------------------------------------------
Nottingham     Waltham TS               Nottingham TS                                
- --------------------------------------------------------------------------------------
Plymouth       Fremont Point TS                                                      
- --------------------------------------------------------------------------------------
Plymouth       Stockland Hill TS        Beacon Hill TS                               
- --------------------------------------------------------------------------------------
Plymouth       Plymouth TS                                                           
- --------------------------------------------------------------------------------------
Plymouth       Huntshaw Cross TS                                                     
- --------------------------------------------------------------------------------------
Plymouth       Caradon Hill TS          Plympton TS                                  
- --------------------------------------------------------------------------------------
Southampton    Bluebell Hill TS         Tunbridge Wells TS, Dover TS                 
- --------------------------------------------------------------------------------------
Southampton    Hannington TS                                                         
- --------------------------------------------------------------------------------------
Southampton    Rowridge TS              Salisbury TS, Midhurst TS, Whitehawk Hill TS 
- --------------------------------------------------------------------------------------
TV Centre      Beckley TS                                                            
- --------------------------------------------------------------------------------------
TV Centre      Crystal Palace TS        Guildford TS, Reigate TS, Hemel Hempstead TS                                           
- --------------------------------------------------------------------------------------
TV Centre      Heathfield TS            Hastings TS                                   
- --------------------------------------------------------------------------------------


 
                                                                              52

                                  SCHEDULE 1
                                  ----------

                 PART 5 :  TRANSMITTER SITE PROVISIONING PLANS
                 ---------------------------------------------



- -----------------------------------------
TRANSMITTER              FEED A    FEED B
LOCATION                                 
- -----------------------------------------
                              
Crystal Palace TS        Fibre     Fibre 
- ----------------------------------------- 
Winter Hill TS           Fibre     Fibre  
- ----------------------------------------- 
Sutton Coldfield TS      Fibre     Fibre  
- ----------------------------------------- 
Emley Moor TS            Fibre     Fibre  
- ----------------------------------------- 
Waltham TS               Fibre     Fibre  
- ----------------------------------------- 
Black Hill TS            Fibre     Fibre  
- ----------------------------------------- 
Sandy Heath TS           Fibre     Fibre  
- ----------------------------------------- 
Pontop Pike TS           Fibre     Fibre  
- ----------------------------------------- 
Bilsdale TS              Fibre     Radio  
- ----------------------------------------- 
Mendip TS                Fibre     Fibre  
- ----------------------------------------- 
Bluebell Hill TS         Fibre     Fibre  
- ----------------------------------------- 
Hannington TS            Fibre     Fibre  
- ----------------------------------------- 
Divis TS                 Fibre     Fibre  
- ----------------------------------------- 
Midhurst TS              Fibre     Radio  
- ----------------------------------------- 
Talconeston TS           Fibre     Fibre  
- ----------------------------------------- 
Beckley TS (Oxford)      Fibre     Fibre  
- ----------------------------------------- 
Wenvoe TS                Fibre     Fibre  
- ----------------------------------------- 
Sudbury TS               Fibre     Fibre  
- ----------------------------------------- 
Craigkelly TS            Fibre     Fibre  
- ----------------------------------------- 
Ridge Hill TS            Fibre     Radio  
- ----------------------------------------- 
Stockland Hill TS        Fibre     Fibre  
- ----------------------------------------- 
Whitehawk Hill TS        Fibre     Fibre  
- ----------------------------------------- 
Sheffield TS             Fibre     Fibre  
- ----------------------------------------- 
Nottingham TS            Fibre     Fibre  
- ----------------------------------------- 
Caradon Hill TS          Fibre     Fibre  
- ----------------------------------------- 
Caldbeck TS              Fibre     Fibre  
- ----------------------------------------- 
Chatton TS               Fibre     Fibre  
- ----------------------------------------- 
Hemel Hempstead TS       Fibre     Fibre  
- ----------------------------------------- 
Kilvey Hill TS           Fibre     Fibre  
- ----------------------------------------- 
Reigate TS               Radio     Radio  
- ----------------------------------------- 
Dover TS                 Fibre     Fibre  
- ----------------------------------------- 
Bristol IC TS            Fibre     Fibre  
- ----------------------------------------- 
Beacon Hill TS           Fibre     Fibre  
- ----------------------------------------- 
Redruth TS               Fibre     Fibre  
- ----------------------------------------- 
 

 
                                                                              53

 
                              
- -----------------------------------------
Limavady TS              Fibre     Radio 
- -----------------------------------------
Chesterfield TS          Fibre     Fibre 
- -----------------------------------------
Bristol KW TS            Fibre     Fibre 
- -----------------------------------------
Tunbridge Wells TS       Fibre     Fibre 
- -----------------------------------------
Pontypool TS             Fibre     Radio 
- -----------------------------------------
Bromsgrove TS            Fibre     Fibre 
- -----------------------------------------
Brougher Mt. TS          Fibre     Radio 
- -----------------------------------------
Salisbury TS             Fibre     Fibre 
- -----------------------------------------
Aberdare TS              Fibre     Fibre 
- -----------------------------------------
Angus TS                 Fibre     Radio 
- -----------------------------------------
Belmont TS               Fibre     Fibre 
- -----------------------------------------
Blaen Plwyf TS           Fibre     Fibre 
- -----------------------------------------
Bressay TS               Radio     Radio 
- -----------------------------------------
Brierly Hill TS          Fibre     Fibre 
- -----------------------------------------
Carmel TS                Fibre     Radio 
- -----------------------------------------
Darvel TS                Fibre     Fibre 
- -----------------------------------------
Durris TS                Fibre     Fibre 
- -----------------------------------------
Eitshall TS              Radio     Radio 
- -----------------------------------------
Fenham TS                Fibre     Fibre 
- -----------------------------------------
Fenton TS                Fibre     Fibre 
- -----------------------------------------
Fremont Point TS         Fibre     Fibre 
- -----------------------------------------
Guildford TS             Fibre     Fibre 
- -----------------------------------------
Hastings TS              Fibre     Fibre 
- -----------------------------------------
Heathfield TS            Fibre     Fibre 
- -----------------------------------------
Huntshaw Cross TS        Fibre     Radio 
- -----------------------------------------
Idle TS                  Fibre     Fibre 
- -----------------------------------------
Keelylang TS             Radio     Radio 
- -----------------------------------------
Keighley TS              Fibre     Fibre 
- -----------------------------------------
Knock more TS            Radio     Radio 
- -----------------------------------------
Lancaster TS             Fibre     Radio 
- -----------------------------------------
Lark stone TS            Fibre     Fibre 
- -----------------------------------------
Llandonna TS             Fibre     Radio 
- -----------------------------------------
Malvern TS               Fibre     Fibre 
- -----------------------------------------
Moel y Parc TS           Fibre     Radio 
- -----------------------------------------
Olivers Mount TS         Fibre     Fibre 
- -----------------------------------------
Pendle Forest TS         Fibre     Fibre 
- -----------------------------------------
Plympton TS              Fibre     Fibre 
- -----------------------------------------
Preseli TS               Fibre     Fibre 
- -----------------------------------------
Rosemarkie TS            Fibre     Radio 
- -----------------------------------------
Rosneath TS              Fibre     Radio 
- -----------------------------------------
Rowridge TS              Fibre     Radio 
- -----------------------------------------
 

 
                                                                              54

 
                              
- -----------------------------------------
Runster Forest TS        Fibre     Radio 
- -----------------------------------------
Saddleworth TS           Fibre     Fibre 
- -----------------------------------------
Selkirk TS               Fibre     Fibre 
- -----------------------------------------
Storeton TS              Fibre     Fibre 
- -----------------------------------------
The Wrekin TS            Fibre     Radio 
- -----------------------------------------
Torosay TS               Radio     Radio  
- -----------------------------------------


 
                                                                              55

                                  SCHEDULE 2
                                  ----------

                            CHARGES FOR THE SERVICE
                            -----------------------

1.     CHARGES

1.1    The Charges payable to BT by the Customer will be as follows:

       (a)  a Service Connection Charge for Access Circuits of [*] as at 1998
            prices; and

       (b)  an annual Service Rental Charge  of [*] as at 1998 prices in
            accordance with paragraph 1.2 below.

1.2.1  The Service Rental Charge is calculated in accordance with BT's Price
       List entry for DTTV Distribution Network Service (DTTV) contained in
       Section 19, Part 2 of BT's Price List; and BT's Price List entry for
       Digital Video Broadcasting (DVB) Tariff contained in Section 19, part 2
       of BT's Price List.

1.2.2  The Service Rental Charge is subject to indexation in accordance with
       paragraph 1.3 of this Schedule. The Service Connection Charge is not
       subject to indexation. The Charges are subject to VAT, which will be
       added to the Charges and payable by the Customer. The Charges will not
       otherwise vary during the term of this Contract, unless there is an
       agreed variation in the Customer's requirements.

1.2.3  Service Rental Charges include the following elements:

       a)   Access Circuits (DVB)
            ---------------------

            Charges for this element of the Service cover the conveyance of DVB
            stream(s) from the Customer's premises to the DTTV Distribution
            Network and are calculated in accordance with BT's Price List entry
            for Digital Video Broadcasting (DVB) Tariff contained in Section 19,
            part 2 of BT's Price List.

[*] Indicates where text has been omitted pursuant to a request for confidential
    treatment. The omitted text has been filed with the Securities and Exchange
    Commission separately.

 
                                                                              56

            The charge for Access Circuits for the Customer is [*] p.a. at 1998
            prices.

       b)   DTTV Distribution Network Service (DTTV)
            ----------------------------------------

            Applicable Charges consist of:

            (i)   National Distribution Charges covering the conveyance of the
                  Customer's multiplexed DVB transport stream(s) from the
                  regionally associated CNAP and SNAP to the 14 regional CNAPS
                  and SNAPS comprising the National Distribution element of the
                  DTTV network.

                  The charge for this element of the Service is [*] p.a. at 1998
                  prices.

            (ii)  Local Distribution Charges covering the conveyance of the
                  Customer's multiplexed DVB transport stream(s) from the 14
                  regional CNAPS and SNAPS to the relevant Transmitter Sites.

                  The charge for this element of the Service is [*] p.a. at 1998
                  prices, but see NOTE below.

            NOTE: Local Distribution Charges
                  --------------------------

                  During the rollout of Service to the Transmitter Sites Local
                  Distribution Charges will progressively increase in accordance
                  with Service Delivery Dates (subject to 1.4 (b) below) as the
                  Service is provided to more Transmitter Sites, and the Charges
                  shown above in 1.2(b)(ii) will be levied in accordance with
                  the number of Transmitter Sites to which Service is provided.
                  Service to Transmitter Sites will be charged for on

[*] Indicates where text has been omitted pursuant to a request for confidential
    treatment. The omitted text has been filed with the Securities and Exchange
    Commission separately.

 
                                                                              57

                  the basis of an average price for distribution to Transmitter
                  Sites, calculated as follows:-
 
                  total Local Distribution Charges  = Y
                  --------------------------------     
                                81

                  Where Y is the Local Distribution Charge per Transmitter Site
                  to which Service is provided. Y is then multiplied by the
                  number of Transmitter Sites to which Service is provided.

1.2.4  Total Service Rental Charges (on the basis that all Service Delivery
       Dates are met by BT) at 1998 prices are therefore as follows:
 
 
 
       Description                           Year 1  Year 2  Year 3
       -----------                           ------  ------  ------
       onwards
       -------
                                                    
 
       Access Charges                          [*]     [*]     [*]
                                                                  
       National Distribution Charges           [*]     [*]     [*]
                                                                  
       Local Distribution Charges              [*]     [*]     [*]
                                                                  
       TOTAL                                   [*]     [*]     [*] 


       In the event of any changes to the delivery programme, the Local
       Distribution Charges may vary from those indicated in the above
       tabulation, as the Local Distribution Charges are payable (subject to 1.4
       (b) below) from the relevant Service Delivery Dates.

1.3    Charges will be annually increased on each anniversary of the first
       Service Delivery Date in accordance with the following formula:

[*] Indicates where text has been omitted pursuant to a request for confidential
    treatment. The omitted text has been filed with the Securities and Exchange
    Commission separately.

 
                                                                              58
 
C1 =   [*]

where:

C1 =   Charges for the current year,

C0 =   Charge for the previous year,

    X =   The arithmetic mean of the percentage increases in the Retail Price
Index for each of the 12 months immediately preceding each anniversary of the
first Service Delivery Date over the Retail Price Index for each of the
corresponding 12 months immediately preceding those 12 months.

       PROVIDED THAT:-

       (a)   in the event that the above formula results in a negative or zero
             figure increase for any period, then there will be no increase for
             that period;

       (b)   in the event that the RPI is not available in time for BT to
             calculate a revised Service Rental Charge on an anniversary of the
             first Service Delivery Date, then BT will invoice the Customer at
             the previous year's Service Rental Charge until the RPI is
             available, when an appropriate adjustment will be made to a
             following invoice;

       (c)   should the RPI cease or fail to be published or should any changes
             occur to the basis of the RPI, BT and the Customer will make a fair
             and reasonable adjustment to RPI or, if appropriate, substitute a
             revised formula which in either event will have substantially the
             same effects as those specified in this paragraph 1.3.

1.4    The terms of payment for the Charges as above will be as follows:-

       (a)   the Service Connection Charge under 1.1(a) above will be payable in
             two equal instalments on the first and second anniversaries of the
             first Service Delivery Date;

[*] Indicates where text has been omitted pursuant to a request for confidential
    treatment. The omitted text has been filed with the Securities and Exchange
    Commission separately.

 
                                                                              59

     (b)  The Service Rental Charge under 1.1(b) above will be payable every two
          calendar months in advance, with the first payment being due on the
          first Service Delivery Date, PROVIDED THAT if Service is not provided
          to a Transmitter Site on the relevant Service Delivery Date and the
          delay is due to BT, the Service Rental Charge is payable from the date
          on which Service is provided to that Transmitter Site ("the
          Operational Service Date").

2.   ADDITIONAL TRANSMITTER SITES

     The formula to be used to calculate the Charges for additional transmitter
     site access in accordance with Sub-clause 17.1 (i) will be that the Service
     Rental Charges for Service to the additional transmitter sites will be
     based on the Service Rental Charges as described in paragraph 1 above, but
     subject to a maximum annual charge of [*] at 1998 prices (plus value added
     tax) per annum per site, such maximum figure being subject to annual
     indexation in accordance with paragraph 1.3 above from the first
     anniversary of the first Service Delivery Date to the time the Service is
     provided to the additional transmitter site(s), provided that such maximum
     annual charge will only apply to up to an aggregate maximum of 24
     additional transmitter sites nominated by the Customer, and where all such
     sites and circuits to them are within BT's Licensed area in the United
     Kingdom.  The additional Service Rental Charges for Service being provided
     to such additional transmitter sites will be subject to annual increase in
     accordance with paragraph 1.3 above. The annual charge referred to above
     will be apportioned per DTTV Multiplex Service (currently 5) according to
     any shared utilisation with other customers for the DTTV Service.

[*] Indicates where text has been omitted pursuant to a request for confidential
    treatment. The omitted text has been filed with the Securities and Exchange
    Commission separately.

 
                                                                              60

                                  SCHEDULE 3
                                  ----------

                     LATE DELIVERY PAYMENTS AND ABATEMENTS
                     -------------------------------------

INDEX
- -----

Part 1:       Late Delivery Payments
Part 2:       Loss of Service Definition
Part 3:       Abatements

 
                                                                              61

                                  SCHEDULE 3
                                  ----------

                       PART 1: LATE DELIVERY PAYMENTS
                       ------------------------------

1.   GENERAL

     In the event of delivery of Preliminary Testing Service after the Service
     Preliminary Testing Dates, of delivery of Full Testing Service after the
     Service Full Testing Dates, and/or of delivery of full Service after the
     Service Delivery Dates, where the delay is due to BT, the Customer will be
     entitled to claim Late Delivery Payments from BT calculated and payable in
     accordance with this Part 1 of Schedule 3.

     BT will, wherever practicable, co-ordinate its activities with the
     transmitter providers' build project timetables and to this intent will use
     reasonable endeavours to provide relevant Service to the Phase 1
     Transmitter Sites (as defined below), subject to requirements in Clauses 4
     and 6 being met within appropriate earlier timescales, one month prior to
     relevant Dates, but will not be liable for Late Delivery Payments (or at
     all) in the event of any such Service not being available on any such Date.

2.   LATE DELIVERY PAYMENTS FOR LATE DELIVERY OF PRELIMINARY TESTING SERVICE AND
     FULL TESTING SERVICE TO PHASE 1 TRANSMITTER SITES

2.1  Where Preliminary Testing Service is not made available to all of the
     Transmitter Sites listed under the heading Phase 1 in Part 2 of Schedule 1
     (the "Phase 1 Transmitter Sites") by midnight on their common Service
     Preliminary Testing Date, and/or where Full Testing Service is not made
     available to all of the Phase 1 Transmitter Sites by midnight on their
     common Service Full Testing Date, where the delay is due to BT in each
     case, Late Delivery Payments will be calculated as follows:-

 
                                                                              62

2.2  For Preliminary Testing Service, Late Delivery Payments will be based on
     Table 1A below. The amount payable will be a single payment, being the
     figure shown opposite the Day on which Preliminary Testing Service is
     provided to all the Phase 1 Transmitter Sites, multiplied by the number of
     DTTV Multiplex Services for which the Customer (or, where appropriate, the
     Customer's own customer DTTV Multiplex Service providers) have Broadcasting
     Authority licences (not exceeding 4) and which are affected by the delay
     ("the Multiplier"). Where Preliminary Testing Service is not provided to
     all the Phase 1 Transmitter Sites until after Day 30, the amount payable
     will be the amount shown opposite Day 30, multiplied by the Multiplier.

2.3  For Full Testing Service, Late Delivery Payments will be based on Table 1B
     below. The amount payable will be a single payment, being the figure shown
     opposite the Day on which Full Testing Service is provided to all the Phase
     1 Transmitter Sites, multiplied by the Multiplier. Where Full Testing
     Service is not provided to all the Phase 1 Transmitter Sites until after
     Day 30, the amount payable will be the amount shown opposite Day 30,
     multiplied by the Multiplier.

2.4  If the Customer claims Late Delivery Payments under paragraphs 2.1 to 2.3
     above, the Customer will not be entitled to receive the relevant Service to
     any of the Phase 1 Transmitter Sites. However, if the Customer wishes to
     accept provision of the relevant Service to some, but not all, of the Phase
     1 Transmitter Sites on the relevant Date, then the Customer will be
     entitled to claim Late Delivery Payments of a pro-rata proportion of the
     relevant sum shown in Table 1A or B (as appropriate), where the amount
     payable will be calculated as follows:-

 
                                                                              63

     Number of Phase 1              Figure shown
     Transmitter Sites in           opposite Day
     respect of which               on which relevant
     relevant Service is            Service is
     not available                  provided to all
     _________________        X     Phase 1        X    Multiplier
     Total number of                Transmitter
     Phase 1 Transmitter            Sites (or if after
     Sites                          Day 30, then figure
                                    shown opposite
                                    Day 30)

2.5  Any Phase 1 Transmitter Sites for which a Service Preliminary Testing Date
     and/or a Service Full Testing Date are either not agreed, or are not common
     to the Service Preliminary Testing Date or the Service Full Testing Date
     for the other Phase 1 Transmitter Sites, will be deemed to be Phase 2
     Transmitter Sites (see below) and accordingly Late Delivery Payments under
     this paragraph 2 and the following paragraph 3 will not be payable in
     respect of delivery of relevant Service to such Transmitter Sites.

3.   LATE DELIVERY PAYMENTS FOR LATE DELIVERY OF FULL SERVICE TO PHASE 1
     TRANSMITTER SITES

     In addition to any Late Delivery Payments payable under paragraph 2 above,
     for each of the Phase 1 Transmitter Sites where full Service is not
     provided by midnight on their common Service Delivery Date where the delay
     is due to BT, the Customer will be entitled to claim a further Late
     Delivery Payment which will be [*] per Transmitter Site per day of such
     delay multiplied by the Multiplier, subject to a maximum overall total
     daily payment for all such Transmitter Sites of [*] multiplied by the
     Multiplier.

[*] Indicates where text has been omitted pursuant to a request for confidential
    treatment. The omitted text has been filed with the Securities and Exchange
    Commission separately.

 
                                                                              64

4.   LATE DELIVERY PAYMENTS FOR LATE DELIVERY OF PRELIMINARY TESTING SERVICE,
     FULL TESTING SERVICE, AND FULL SERVICE TO PHASE 2 TRANSMITTER SITES

     In respect of the Transmitter Sites listed under the heading Phase 2 in
     Part 1 of Schedule 1 or deemed to be a Phase 2 Transmitter Site under
     paragraph 2.5 above (the "Phase 2 Transmitter Sites"), the Customer will be
     entitled to claim Late Delivery Payments in accordance with either Option A
     or Option B as set out below, provided that the Customer elects which
     Option will apply prior to signature of this Contract:-

     OPTION A
     --------

     The Customer will be entitled to claim Late Delivery Payments for late
     delivery of Preliminary Testing Service and Full Testing Service on the
     same basis as set out in paragraph 2 of this Part 1 of Schedule 3, but
     where the provisions of paragraph 2 will apply separately to each group of
     Phase 2 Transmitter Sites which share the same Dates, and in the case of
     each such group, the amounts shown in Table 1A and Table 1B are each
     reduced by four-fifths. Additionally, where full Service is not provided to
     any Phase 2 Transmitter Site by midnight on its Service Delivery Date where
     the delay is due to BT, the Customer will be entitled to claim a Late
     Delivery Payment of [*] per day of such delay multiplied by the Multiplier.

     OPTION B
     --------

     No Late Delivery Payments will be payable where Preliminary Testing Service
     is not delivered on the Service Preliminary Testing Date, or where Full
     Testing Service is not delivered on the Service Full Testing Date, but
     where full Service is not provided to any Phase 2 Transmitter Site by
     midnight on its Service Delivery Date where the delay is due to BT, the
     Customer will be entitled to claim a Late Delivery Payment of [*] per day
     of such delay multiplied by the Multiplier.

[*] Indicates where text has been omitted pursuant to a request for confidential
    treatment. The omitted text has been filed with the Securities and Exchange
    Commission separately.

 
                                                                              65

     CUSTOMER'S ELECTION
     -------------------

     The Customer elects Option A

5.   MAXIMUM OVERALL TOTAL OF LATE DELIVERY PAYMENTS

     All Late Delivery Payments will be subject to a maximum overall annual
     total, commencing on the first Service Preliminary Testing Date and
     expiring on the last Operational Service Date, of one half of the total
     Service Rental Charge for Year 3 as set out in paragraph 1.2.4 of Schedule
     2 (or pro rata for the last year).
 
6.   GENERAL SCOPE AND LIMITATIONS OF LATE DELIVERY PAYMENTS

6.1  Late Delivery Payments will be in full and final satisfaction of any claims
     against BT by the Customer relating to delay in provision of the relevant
     Service and BT will not be liable to the Customer for any failure to
     provide the relevant Service by any dates specified in this Contract save
     to the extent set out in this Part 1 of Schedule 3.

6.2  Late Delivery Payments will not be payable:-

     (a)  Where Preliminary Testing Service, Full Testing Service, or full
          Service is not available on the relevant date due to the BT's
          requirements under Clauses 4 or 6 not being met, or an event described
          in Sub-clause 4.4, or to delays in obtaining wayleave consents, or to
          any event falling within Clause 13, or any other cause not due to BT;
          or

     (b)  In relation to Late Delivery Payments for Preliminary Testing Service
          and/or Full Testing Service, to the extent that the Customer does not
          incur costs as a consequence of the delay.

 
                                                                              66


7.   PAYMENT OF LATE DELIVERY PAYMENTS

     Late Delivery Payments will be calculated monthly in arrears and payable
     within 45 days of the date of the invoice from the Customer. The Customer
     may charge daily interest on late payments at a rate equal to 4% per annum
     above the base lending rate of Midland Bank plc.

 
                                                                              67


                                    TABLE 1
                                    -------


                         LATE DELIVERY PAYMENT FORMULA

                         FOR PHASE 1 TRANSMITTER SITES



TABLE 1A                             TABLE 1B                       
PRELIMINARY TESTING                  FULL TESTING                   
SERVICE                              SERVICE                        
========================             ==========================  
   DAY      AMOUNT                      DAY         AMOUNT      
- -----------------------              --------------------------
                                                              
     1         [*]                        1            [*] 
     2         [*]                        2            [*] 
     3         [*]                        3            [*] 
     4         [*]                        4            [*] 
     5         [*]                        5            [*] 
     6         [*]                        6            [*] 
     7         [*]                        7            [*] 
     8         [*]                        8            [*] 
     9         [*]                        9            [*] 
    10         [*]                       10            [*] 
    11         [*]                       11            [*] 
    12         [*]                       12            [*] 
    13         [*]                       13            [*] 
    14         [*]                       14            [*] 
    15         [*]                       15            [*] 
    16         [*]                       16            [*] 
    17         [*]                       17            [*] 
    18         [*]                       18            [*] 
    19         [*]                       19            [*] 
    20         [*]                       20            [*] 
    21         [*]                       21            [*] 
    22         [*]                       22            [*] 
    23         [*]                       23            [*] 
    24         [*]                       24            [*] 
    25         [*]                       25            [*] 
    26         [*]                       26            [*] 
    27         [*]                       27            [*] 
    28         [*]                       28            [*] 
    29         [*]                       29            [*] 
    30         [*]                       30            [*] 
========================             ==========================  
 

Where  each Day commences            Where each Day commences
at 00.01 hours and ends              at 00.01 hours and ends
at 24.00 hours, and Day 1            at 24.00 hours, and Day 1
is the day after the Service         is the day after the Service
Preliminary Testing Date, et seq.    Full Testing Date, et seq.

[*] Indicates where text has been omitted pursuant to a request for confidential
    treatment. The omitted text has been filed with the Securities and Exchange
    Commission separately.

 
                                                                              68

                                  SCHEDULE 3
                                  ----------

                      PART 2: LOSS OF SERVICE DEFINITION
                      ----------------------------------
                                        
1.   The network is designed to achieve an overall end-to-end network
     availability between each Distribution Input Interface pair of Customer's
     Content Signals and each associated Distribution Output Interface pair of
     Customer's Content Signals of not less than 99.99% over a rolling 6 month
     period.

2.   Loss of Service will be considered to have happened when both feeds of
     Customer's Content Signals to a Transmitter Site have been declared as
     unavailable simultaneously, or a feed is declared unavailable within 1
     (one) minute of the other feed being declared available (after the other
     feed had previously been declared unavailable). In the first case the Loss
     of Service will be credited for Abatements purposes in complete seconds
     until one of the feeds is declared available. In the second case a Loss of
     Service of 1 (one) minute minus the time in complete seconds during which
     both links were available will be credited for Abatements purposes.

3.   A feed to a Transmitter Site will be deemed to be unavailable whenever one
     of the following conditions is satisfied (these conditions being based on
     ETSI Technical Recommendation ETR 290 (May 1997), Title: Digital Video
     Broadcasting (DVB) Measurement Guidelines for DVB Systems, Ref: DTR/JTC -
     00DVB - 22):-

     (a)  [*] or
 
     (b)  [*] or
          
     (c)  [*] or

[*] Indicates where text has been omitted pursuant to a request for confidential
    treatment. The omitted text has been filed with the Securities and Exchange
    Commission separately.

 
                                                                              69

     (d)  [*] or

     (e)  [*] or

     (f)  [*] or

     PROVIDED THAT where more than one of the above events occur simultaneously
     or overlap, only one of such events, in the order of precedence listed
     above, will give rise to Abatements.

4.   Feeds will be deemed available (after they have previously been declared
     unavailable) when the following conditions apply. Each clear condition is
     associated with the fault condition above:-
 
     (a)  [*] or

     (b)  [*] or

     (c)  [*] or

     (d)  [*] or
 
     (e)  [*] or

     (f)  [*]

[*] Indicates where text has been omitted pursuant to a request for confidential
    treatment. The omitted text has been filed with the Securities and Exchange
    Commission separately.

 
                                                                              70

                                  SCHEDULE 3
                                  ----------

                             PART 3:  ABATEMENTS
                             --------------------

1.   GENERAL

     If Loss of Service occurs after the first Operational Service Date which is
     due to BT, then the Customer will be entitled to claim an Abatement of the
     Service Rental Charge in accordance with this Part 3 of Schedule 3.  For
     the purposes of Abatements, Loss of Service will be calculated over a
     rolling 365 day period.

2.   ABATEMENTS FOR LOSS OF SERVICE

     Should a Loss of Service to any of the Transmitter Sites occur after its
     Operational Service Date then subject to paragraphs 3 and 4 below, the
     Customer will be entitled to claim an Abatement of the Service Rental
     Charge in accordance with the formula set out in Table 1 below. The maximum
     Abatement of Service Rental Charge to apply to a Loss of Service to any
     Transmitter Site in any consecutive period of one year commencing on the
     first Operational Service Date for the remainder of the term of this
     Contract (or part year for the last such period), will be as set out in
     Table 1 below (or a proportionate part of such maximum for the last such
     period).

3.   MAXIMUM OVERALL ANNUAL TOTAL OF ABATEMENTS
 
     Abatements will be subject to a maximum overall annual total, commencing on
     the first Operational Service Date and expiring on the last day of the
     Contract, of one half of the total Service Rental Charge for Year 3 as set
     out in paragraph 1.2.4 of Schedule 2 and as increased in accordance with
     the formula set out in paragraph 1.3 of Schedule 2 at the date of
     calculation (or pro rata for the last year).

 
                                                                              71

4.   GENERAL SCOPE AND LIMITATIONS OF ABATEMENTS

4.1  Payment or credit of Abatements will be in full and final satisfaction of
     any claims against BT by the Customer relating to the quality of the
     Service and BT will not be liable to the Customer for any faults, Loss of
     Service or other failures in the quality of the Service save to the extent
     set out in this Part 3 of Schedule 3

4.2  No Abatement of the Service Rental Charge for Loss of Service to any
     Transmitter Site will apply if such Loss of Service is due to any one of
     the following circumstances:-

     (a)  where the failure is due to any matter covered by Clause 13; or

     (b)  interruption, withdrawal or suspension of the Service in accordance
          with Sub-clause 2.6, 7.5 or 16.2, or to carry out planned upgrades to
          the Service at agreed times (including installation of output
          switching); or

     (c)  failure by the Customer to comply with its obligations under this
          Contract, including but not limited to those under Clauses 5 or 7; or

     (d)  BT's requirements under Clauses 4 or 6 not being met, or an event
          occurring as described in Sub-clause 4.4; or

     (e)  a failure or fault not attributable to the Service, including but not
          limited to faults attributable to the Customer's Equipment, or other
          networks or services connected to the Service, or other circumstances
          under the Customer's control; or

     (f)  the Loss is due to the Customer's Content Signals being absent or
          degraded or incorrectly routed prior to the Distribution Input
          Interface.

 
                                                                              72

5.   PAYMENT OF ABATEMENTS

5.1  Within 10 working days following any period of Loss of Service, BT will
     forward to the Customer a consolidated report of any Loss of Service to the
     Transmitter Sites specifying the dates, times and durations of any such
     Loss of Service and specifying any applicable Abatement as determined by,
     and meeting the conditions outlined in this Part 3 of Schedule 3, which the
     Customer will be entitled to claim.

5.2  Unless otherwise agreed with the Customer, Abatements claimed by the
     Customer will be set off against the next instalment(s) of the Service
     Rental Charge, except for any Abatements claimed after the final instalment
     has been paid, where BT will pay any Abatements claimed within 45 days of
     the date of the invoice from the Customer. The Customer may charge daily
     interest on late payment of such invoice at a rate equal to 4% per annum
     above the base lending rate of Midland Bank plc.

 
                                                                              73

                                    TABLE 1
                                    -------

                               ABATEMENT FORMULAE
                               ------------------
                                        

Abatements for Category A Transmitter Sites (One only, being Crystal Palace
- ---------------------------------------------------------------------------
Transmitter Site)
- -----------------

- ---------------------------------------------------------------------
Total loss of service in any       Annual derived abatement of Annual
365 day period.                    Rental charge (per Station)

T= 0 to 30 secs                    [*]
T= 30 secs to 240 mins             [*]
T= above 240 mins                  [*]
- ---------------------------------------------------------------------

Where X(T) = [*]
ln is natural logarithm.
T is the cumulative Loss of Service in minutes rounded to the nearest whole
minute.

Abatements for Category B Transmitter Sites (All Transmitter Sites other than
- -----------------------------------------------------------------------------
Crystal Palace Transmitter Site)
- --------------------------------

- ---------------------------------------------------------------------
Total loss of service in any       Annual derived abatement of Annual
365 day period.                    Rental charge (per Station)


T= 0 to 30 secs                    [*]
T= 30 secs to 240 mins             [*]
T= above 240 mins                  [*]
'''''''''''''
- ---------------------------------------------------------------------

Where X(T) = [*]
ln is natural logarithm.
T is the cumulative Loss of Service in minutes rounded to the nearest whole
minute.
NOTE:  These formulae will apply on a per Transmitter Site basis

[*] Indicates where text has been omitted pursuant to a request for confidential
    treatment. The omitted text has been filed with the Securities and Exchange
    Commission separately.

 
                                                                              74

                                   SCHEDULE 4
                                   ----------

                        FUNCTIONAL DESIGN SPECIFICATION
                        -------------------------------
                                        
The Functional Design Specification is a detailed technical description of the
Service, of which the current version is:-

"An Integrated Distribution Network for Digital Terrestrial Television
Functional Design Specification
for Castle Transmission International
Issue: Draft 0.2"

It does not form part of the Contract, but may be used by the parties for
reference and clarification purposes.  In the event of any conflict between the
Functional Design Specification and the Contract, the Contract will prevail.

The parties recognise that the technical description and specification of the
Service may change from time to time, and that any such agreed changes will be
incorporated within a revised Functional Design Specification, in addition to
any changes that may be agreed to the Contract consequent on such changes.

 
                                                                              75

                                   SCHEDULE 5
                                   ----------

                              IMPLEMENTATION PLAN
                              -------------------
                                        
BT will produce an Implementation Plan for delivery and testing of the Service,
which will include timescales for fulfilment of BT and Customer requirements and
obligations (including the BT requirements and Customer's obligations under Sub-
clauses 4.1 and 6.1), and which both parties will use all reasonable efforts to
agree as soon as practicable, PROVIDED THAT in any event the Customer
acknowledges that, as a minimum:-

(a)  BT will require the requirements described in Sub-clause 4.1 to be
     fulfilled not less than two calendar months prior to the relevant Service
     Preliminary Testing Date at each Site; and

(b)  BT will require the following minimum levels of access referred to in Sub-
     clause 6.1:-

     (i)   continuous 24-hour access to all relevant Sites for all internal work
           during a period from 2 months prior to each Service Preliminary
           Testing Date to each Service Delivery Date;

     (ii)  access 7 days per week from 08.00 hours to 18.00 hours to all
           relevant Sites for all external work during a period from 3 months
           prior to each Service Preliminary Testing Date to 1 month prior to
           each Service Preliminary Testing Date, then continuous 24-hour access
           to all relevant Sites for all external work during a period from 1
           month prior to each Service Preliminary Testing Date to each Service
           Delivery Date.

If the Customer is unable to arrange access in accordance with (b) above at any
Transmitter Sites, the Customer may propose an alternative detailed timetable
(including proposed dates and hours of access for internal and external work)
for BT's access to such Transmitter Sites. BT will review these proposals and
indicate whether or not BT can accept them (which will be at BT's sole
discretion) in relation to each Transmitter

 
                                                                              76

Site.  Where BT accepts such proposals, BT's requirements under Sub-clause 6.1
shall be deemed to be modified accordingly in relation to such Transmitter
Site(s), and Late Delivery Payments shall apply accordingly.  Where BT does not
accept such proposals, BT will use reasonable endeavours to carry out the
relevant work within the Customer's proposed timetable but will have no
liability to the Customer for late provision of Service and accordingly no Late
Delivery Payments will be payable.  BT's acceptance of any such proposals will
only be valid if made in writing and signed by BT's DTTV Service Project
Manager, such BT DTTV Service Project Manager to be advised by BT to the
Customer from time to time.

 
                                                                              77

                                   SCHEDULE 6
                                   ----------

                                ACCEPTANCE TESTS
                                ----------------

                         PART 1 :  GENERAL METHODOLOGY
                         -----------------------------

     BT will conduct Acceptance Tests in accordance with the following
     methodology to satisfy conformance with the Acceptance Criteria. These
     tests will take place in four main stages:-

     (a)  the Customer will have the built in diagnostic features of the ASI
          equipment demonstrated to them at BT laboratories. These features will
          enable remote verification that the DTTV Distribution Network is
          satisfying the service parameters during commissioning and through out
          the life of the network;

     (b)  individual links will be commissioned by BT. Copies of the
          commissioning reports for each circuit within the network on which
          their signals are carried will be made available to the Customer;

     (c)  the Customer's nominated representatives, in accordance with Sub-
          clause 3.1, will be invited to be present at a five randomly picked
          Transmitter Sites where the diagnostic features of the ASI equipment
          will again be verified with other test equipment. At this time the
          Customer will also verify that the network monitoring system is
          reporting as expected;

     (d)  the DTTV Distribution Network will then be finally commissioned, using
          the diagnostic features of the ASI mux and the network monitoring
          system, ensuring that the Service meets the Acceptance Criteria.

2.   The Acceptance Tests for the Preliminary Testing Service, the Full Testing
     Service, and fully operational Service will be as follows:-

 
                                                                              78

     (a)  following the installation of a single link for the Preliminary
          Testing Service, BT will verify the link performance between the
          Playout Centre and the Transmitter Site.  Acceptance Testing for the
          Preliminary Testing Service will consist of a link performance check
          which will be limited to a verification that the ASI performance is
          error-free and formatted in accordance with DVB-PI-154 TM1449:
          Interfaces for CATV/SATV Headends and Similar Professional Equipment
          (EN 50083-9) (the "Specification");

     (b)  following the installation of the second link, BT will verify the link
          performance between the Playout Centre and the Transmitter Site.  A
          link performance check will be limited to a verification that the ASI
          performance is error-free and formatted in accordance with the
          Specification. If these conditions are met, both links will then be
          subject to longer duration stability testing, where the diagnostic
          features of the ASI Mux will be used in conjunction with the network
          monitoring system to demonstrate that [*]. Should errors occur during
          link testing then the stability check will be restarted until a [*].
          These results will be presented to the Customer as demonstration that
          the results of the Acceptance Tests for the Full Testing Service and
          the fully operational Service meet the Acceptance Criteria.

[*] indicates where text has been omitted pursuant to a request for confidential
    treatment. The omitted text has been filed with the Securities and Exchange
    Commission separately.


 
                                                                              79

                                   SCHEDULE 6
                                   ----------

                         PART 2:  ACCEPTANCE CRITERIA
                         ----------------------------
                                        
     For the Preliminary Testing Service, the Acceptance Criteria will be that
     the ASI stream is error-free and formatted in accordance with the
     Specification as defined in paragraph 2, Part 1, Schedule 6, measured as
     described in paragraph 2, Part 1, Schedule 6.

     For the Full Testing Service, and the fully operational Service, the
     Acceptance Criteria will be that there are no transport stream errors
     introduced by the distribution system recorded by the Network Management
     Service for a continuous period of [*], measured as described in
     paragraph 2, Part 1, Schedule 6.

               Please see paragraph 3, Part 1, Schedule 1 for description of the
     respective facilities comprising the Preliminary Testing Service, the Full
     Testing Service and fully operational Service.

[*] Indicates where text has been omitted pursuant to a request for confidential
    treatment. The omitted text has been filed with the Securities and Exchange
    Commission separately.

 
                                                                              80

                                  SCHEDULE 7
                                  ----------  

                          NETWORK MANAGEMENT SERVICE 
                          --------------------------

1.   NETWORK MANAGEMENT

1.1  Network Management facilities will be provided to coincide with Service
     Full Testing Dates.  Network Management provides the framework within which
     the Service will be managed.  A more detailed description of the facilities
     that will be provided by BT and the features and functionality is contained
     in the Functional Design Specification.

1.2  Network technical performance information will be made available to the
     Customer, and any network  failures will be reported to the status display
     and statistics will be maintained and be available at the status display.
     This status display will provide a continuous overview of the network and
     the status of the signals.  If a Loss of Service occurs, alarms will appear
     on the status display.  The displays will also provide facilities to
     ascertain the reason for the alarm(s) and to store the cumulative Service
     statistics for a rolling 12 month period.

1.3  Network reports will be available as described in the Functional Design
     Specification.

2.   FAULT REPORTING

     The BT Service Management Centre (SMC) will manage the Service.  The SMC
     will monitor the Service 24 hours/day, 365 days/year and will provide a
     reporting service to the Customer for incidents on the Service.  If a Loss
     of Service occurs the Customer can contact BT at the SMC on the following
     numbers:-

          The telephone number for the SMC is: 0800 212857
          The facsimile number for the SMC is: 0(1)71 261 4279

 
                                                                              81

                                  SCHEDULE 8
                                  ----------

                   SPECIFICATION OF CUSTOMER CONTENT SIGNALS
                   -----------------------------------------
                                        
1.   The Customer will provide in respect of each DTTV Multiplex Service, two
     outputs of Customer's Content Signals to be carried over the DTTV
     Distribution Network from each Playout Centre. Each output of Customer's
     Content Signals will be identical and (subject to Sub-clause 4.2)
     continuous under normal conditions, and will have a nominal bitrate of [*]
     . Customer's Content Signals must comply with the characteristics described
     in paragraph 4.1, Part 1, Schedule 1.

2.   Customer interfaces to the network will be provided in accordance with
     paragraph 4, Part 1, Schedule 1.

[*] Indicates where text has been omitted pursuant to a request for confidential
    treatment. The omitted text has been filed with the Securities and Exchange
    Commission separately.

 
                                                                              82

                                  SCHEDULE 9
                                  ----------

             PERSONS PERMITTED TO RECEIVE CONFIDENTIAL INFORMATION
             -----------------------------------------------------

1.   BOTH PARTIES

     Their employees or professional advisers who need to know the information

2.   ADDITIONALLY FOR BT

     The employees of a BT Group Company who need to know the information BT's
     suppliers who need to know the information

3.   ADDITIONALLY FOR THE CUSTOMER

     The employees of the following who need to know the information:-

          British Digital Broadcasting Plc   
          The British Broadcasting Corporation
          Any Group Company of the Customer  
          The Customer's suppliers

 
                                                                              83

                                  SCHEDULE 10
                                  -----------

                          CONTRACT CHANGE ORDER FORM
                          --------------------------


________________________________________________________________________________

CHANGE ORDER NUMBER:          DATE:
- --------------------          -----


The Contract dated ...................................Reference
- ---------------------------------------------------------------
Number.........................................
- -----------------------------------------------
between British Telecommunications plc of 81, Newgate Street, London, EC1A 7AJ
- ------------------------------------------------------------------------------
(hereinafter called "BT")
- -------------------------

and (Customer)
- --------------

for the supply of :- DTTV Service
- ---------------------------------

is amended as follows:-
- -----------------------

________________________________________________________________________________
1.   DESCRIPTION
________________________________________________________________________________

________________________________________________________________________________
2.   AMENDMENT TO CLAUSE
     -------------------

________________________________________________________________________________
3.   ORIGIN AND REASON FOR CHANGE ORDER
     ----------------------------------

________________________________________________________________________________

 
                                                                              84

________________________________________________________________________________
4.   CHARGES
     -------

     I)  THE TOTAL CHANGE IN THE CHARGES FOR CARRYING OUT THE AMENDMENT IN
     ACCORDANCE WITH THE TERMS OF THIS CHANGE ORDER IS:

     II) THE CHARGES ARE AMENDED TO:-

________________________________________________________________________________

5.   COMMENCEMENT DATE
     -----------------

     The Commencement Date is amended to:-

________________________________________________________________________________
6.   REMARKS
     -------

________________________________________________________________________________
7.   GENERAL
     -------

     Except as amended herein or by any other formal Contract Change Orders duly
     signed by xx and BT, the terms of the Contract dated..................
     Reference Number.................. will remain in full force and effect.

     The terms of this Contract Change Order are agreed.

________________________________________________________________________________
8.   PREVIOUS CONTRACT CHANGE ORDERS
     -------------------------------

     Number              Date
     ------              ----

________________________________________________________________________________

 
                                                                              85

     SIGNED BY                      )
     ---------                       
     a duly authorised person on    )
     behalf of                      )
     British Telecommunications plc )

                              Name  )
                           Position )



     SIGNED BY                      )
     ---------                       
     a duly authorised person on    )
     behalf of xxxx plc
                              Name  )
                           Position )