EXHIBIT 10.105 (CONTINUED)

                                    EXHIBIT 10.105

CONFIDENTIAL TREATMENT REQUESTED
The asterisked portions of this document have been omitted and are filed
separately with the Commission.

                                      AGREEMENT

     This Agreement (the "Agreement") is entered into by and between 
broadcast.com inc., a Delaware corporation ("broadcast.com"), and Trimark 
Pictures, Inc., a California corporation ("Pictures"), Trimark Holdings, 
Inc., a Delaware corporation ("Holdings"), Trimark Television, Inc., a 
Delaware corporation ("Television"), and Trimark Music ("Music") 
(collectively, Pictures, Holdings, Television and Music will be referred to 
as "Trimark" or "Parties") as of the date indicated on the signature pages.

     The intent of the Agreement is for Trimark to provide certain video 
product to broadcast.com, and for broadcast.com to act as the carrier of such 
product and make it available to Internet users during the term hereof.  
Broadcast.com shall provide all digitizing, storing and transmission services 
as needed to enable delivery on the Internet (subject to the restrictions in 
this Agreement), and Trimark will provide acquisition, licensing and 
programming by utilizing its currently owned and/or controlled video product 
as well as video product over which it subsequently gains ownership or 
control.

     In consideration of the mutual covenants and agreements of the Parties 
herein contained and other good and valuable consideration, the receipt and 
sufficiency of which is hereby acknowledged, the Parties hereby agree as 
follows:

1.   DEFINITIONS:

     a.   "ACCESS FEE" is a fee paid by a User in order to access a
          transmission, display or performance of a Video on the System.

     b.   "ACCESS  PAGE" is a Web page on the broadcast.com Web site that is
          designed by broadcast.com in accordance with the "look and feel" of
          the broadcast.com site, subject to Trimark's reasonable approval and
          through which the Videos will be accessible, and through which
          consumers will be able to access, view, and/or order copies of the
          Videos and Video-related Merchandise.

     c.   "BROADCAST INVENTORY" shall mean internal program breaks within the
          transmission of the Videos to broadcast.com Users, similar in
          character to traditional broadcast


EXHIBIT 10.105 (CONTINUED)

          television commercial breaks or theatrical film previews.  The 
          term shall not include framing, messages, or any other material 
          visible or audible (at viewer's election) during the entire 
          length of the Video broadcast on any broadcast.com Web site or to 
          any User.

     d.   "BROADCAST.COM LICENSEE" is an on-line distributor or retailer of hard
          copies of the Videos in videocassettes, DVDs, videodisks, or similar
          format, as designated by broadcast.com.

     e.   "CONFIDENTIAL INFORMATION" is any information of a Disclosing Party
          that the Receiving Party knows or reasonably should know to be
          confidential or proprietary information of the Disclosing Party,
          whether of a technical, business or other nature.

     f.   "DISCLOSING PARTY" is a party who discloses Confidential Information.

     g.   "MARKS" are a party's logos, trade names, trademarks and service
          marks, collectively.

     h.   "MERCHANDISE" shall include selected merchandise, other than video
          cassettes, video discs, DVD, and similar hard copies of the Videos,
          that relates to the Videos to be offered for sale by Trimark through
          an Order Now Button on the Access Page.

     i.   "ORDER NOW BUTTON" is a button or text link, directly to the Trimark
          Web site, Web site designated by Trimark, or the Web site of a
          broadcast.com Licensee, that appears in close proximity to a
          description or other reference to the Videos and/or Merchandise and
          which contains the words "Order Now," "Buy It" or words of similar
          import, and/or permits users to purchase, or facilitates the purchase
          of, the applicable Videos and/or Merchandise by clicking on such
          button or link.

     j.   "RECEIVING PARTY" is the party who receives Confidential Information
          from a Disclosing Party.

     k.   "REGISTRATION DATABASE" is a database of viewers who register to
          access the video channel on the broadcast.com Web site.

     1.   "SYSTEM" is any wired network (including, without limitation, the
          Internet, the Internet II, or any other online services network which
          utilizes computer terminals, terminal servers, modems, cable modems,
          HFC, coaxial cable, xDSL, routers, splitters, switches, multicasting
          technology, power lines, or other high speed data connections and any
          and all other wired networks) that distributes audio or video using
          digital algorithms,


EXHIBIT 10.105 (CONTINUED)

          one and/or two-way digital services, or any wireless network that 
          provides access to such wired network (except AM/FM radio 
          broadcast stations and television broadcast stations, direct 
          broadcast satellite, pay cable and basic cable).

     m.   "USER" is a broadcast.com Access Page registered user.

     n.   "VIDEOS" are all motion pictures and other audiovisual works embodied
          in videotapes, DVD and/or other video masters, including related
          materials such as EPK, synopses, reviews and biographies of such
          Videos, with respect to which Trimark holds or acquires Internet
          broadcast/distribution rights and sales distribution, all of which are
          listed on the attached EXHIBIT A.  The Videos provided by Trimark may
          be motion pictures owned by Trimark or licensed from third parties. 
          Videos will not include any video reasonably rejected by broadcast.com
          as inconsistent with broadcast.com's general censorship standards
          (e.g. pornographic material); provided that broadcast.com will not
          reject any materials rated by the MPAA as "R" or less restrictive.

2.   TRIMARK COVENANTS:

     a.   RIGHTS.  Trimark shall own all rights to masters, source material, and
          promotional material related to the Videos supplied by Trimark,
          whether stored by broadcast.com or any other entity.  Notwithstanding
          the foregoing, Trimark hereby grants to broadcast.com a fully paid up
          right and license to encode, store, publicly distribute, perform,
          display, copy, transmit, broadcast, and market the Videos on the
          System as necessary for the Internet broadcast of the Videos pursuant
          to this Agreement for the term of this Agreement.  Such rights will be
          subject to the territory and Internet transmission dates, and third
          party restrictions specified on the most recently delivered EXHIBIT A.
          In addition, broadcast.com has the right to maintain a copy of the
          Videos to be included and preserved in broadcast.com's archives at
          broadcast.com's sole discretion and expense during the term of this
          Agreement.  After the expiration of this Agreement broadcast.com will
          either provide to Trimark any physical embodiment or electronic copy
          of any stored images encoded by broadcast.com under this Agreement for
          a mutually agreed upon price, or destroy such archives at Trimark's
          direction.

     b.   WEB SITE PROMOTION.  Trimark hereby agrees to place the broadcast.com
          Marks on the Trimark Web site in accordance with broadcast.com's
          trademark usage guidelines, to provide a prominent hyperlink from the
          Trimark Web site


EXHIBIT 10.105 (CONTINUED)

          to the Access Page(s), and to promote the transmission, 
          distribution, performance and display of the Videos by 
          broadcast.com on the Trimark Web site, in press materials and 
          publications, and in connection with the advertising and 
          packaging of the Videos, subject to Paragraph 4b.  In addition, 
          Trimark will provide broadcast.com with promotional placement 
          time on or embodied within VHS and DVD copies of Trimark Videos 
          that will be broadcast by broadcast.com hereunder, and will use 
          good faith efforts to include broadcast.com's logo and URL in 
          connection with all promotions of the Videos that will be 
          broadcast hereunder, including movie posters.

     c.   FORMAT.  Trimark agrees to provide broadcast.com with the Videos to be
          encoded and transmitted on the System as provided herein, on or
          embodied within 1/2 inch, VHS, DVD, or D2 or other mutually acceptable
          format.

     d.   MARKS.  Subject to third party contractual restrictions provided by
          Trimark, Trimark hereby grants to broadcast.com the right to use
          Trimark's Marks, and the marks, names, and likenesses of all third
          parties associated with the Videos and merchandise, in print, audio,
          on-line and other advertising for the promotion of the Videos, the
          relationship of the Parties, and in other means in connection with
          this Agreement, all consistent with broadcast.com's covenants set
          forth herein.  Unless stated otherwise in writing, all artwork
          provided by Trimark to broadcast.com shall be deemed acceptable for
          broadcast.com's promotional purposes (e.g. video boxes, one sheets).

     e.   EXHIBIT A AND REPLACEMENT EXHIBITS.  For each Video identified on
          EXHIBIT A, Trimark will include a description of the nature of the
          rights held by Trimark with respect to such Video, including sales
          distribution rights and/or Internet transmission rights, and all
          applicable geographic and transmission limitations with respect to
          which Trimark is contractually bound.  Trimark agrees that it will
          provide broadcast.com a replacement EXHIBIT A to update the Videos and
          restrictions listed in the EXHIBIT A as such information may change
          from time to time.  All Videos supplied by Trimark shall be made
          available by Trimark to broadcast.com for unlimited broadcast, subject
          only to the restrictions set forth on EXHIBIT A.

     f.   MERCHANDISE SALES.  Broadcast.com shall place Order Now Buttons on the
          broadcast.com Web site at such locations as determined by
          broadcast.com which shall link directly to the Trimark Web site to
          enable Users to purchase Merchandise.  As between broadcast.com and
          Trimark, Trimark shall be solely responsible for processing all


EXHIBIT 10.105 (CONTINUED)

          orders for Merchandise through every aspect of each transaction, 
          including receiving, filling, shipping and handling, collecting 
          payment, tracking and transaction security ("Transaction 
          Responsibilities"). All orders for Merchandise shall be placed by 
          customers directly with Trimark.  Trimark will pay broadcast.com 
          [*] derived from the sale of Merchandise to Users that accessed 
          Trimark's Web site through an Order Now Button.

     g.   VIDEO SALES.  Broadcast.com shall place Order Now Buttons on the
          broadcast.com Web site at such locations as determined by
          broadcast.com which shall link directly to the Trimark Web site to
          enable Users to purchase certain Videos.  Trimark will be solely
          responsible for processing all orders for the purchase of a hard copy
          of the Videos hereunder and for all related Transaction
          Responsibilities.  Trimark will pay broadcast.com [*] as a result of
          sales of Videos to Users that accessed Trimark's Web site through an
          Order Now Button.

     h.   SALES TRACKING.  Under the direction of broadcast.com, Trimark will
          allow for the placement of a mechanism to track Users from the
          broadcast.com site who purchase Videos and Merchandise from Trimark. 
          Trimark shall provide to broadcast.com on a quarterly basis an
          accounting of all such revenue and costs, and shall pay all sums due
          and owing to broadcast.com within thirty (30) days of the end of each
          quarter.  Upon written approval of Trimark, broadcast.com may make the
          Videos available for sale on videocassette, videodisc, DVD, or similar
          hard-copy media through a broadcast.com Licensee.  In such case, the
          Order Now Button on the Access Page would then link to such
          broadcast.com Licensee's Web page, and the broadcast.com Licensee
          shall be solely responsible for the Transaction Responsibilities.  In
          such event, Trimark shall have no further Transaction Responsibilities
          with respect to the transactions of the broadcast.com Licensee.

3.   BROADCAST.COM COVENANTS:

     a.   INFRASTRUCTURE.  Broadcast.com will provide the communications
          infrastructure supporting the access, transmission, display and
          performance of Videos on the System to Users. Additionally,
          broadcast.com will

- ---------------
[*] Certain information on this page has been omitted and filed 
separately with the Commission.  Confidential treatment has been 
requested with respect to the omitted portions.


EXHIBIT 10.105 (CONTINUED)

          maintain at its cost, any technical equipment necessary to 
          distribute the Videos over the System, along with providing the 
          audio and video streams licensing software for the System, which 
          audio/video streaming software, as may be upgraded from time to 
          time, shall at all times be and remain the exclusive property of 
          broadcast.com.

     b.   ENCODING.  Broadcast.com will encode the Videos provided by Trimark
          and shall make such Videos available on the broadcast.com video
          channel on the broadcast.com Web site for on-demand access and viewing
          by Users.

     c.   EMAIL AND TRANSMISSION PROBLEMS.  Broadcast.com agrees that it will
          provide Trimark access to emails from Users relating to the Videos. 
          Broadcast.com will also provide Trimark advance written notice of any
          scheduled system maintenance that would preclude Users from accessing
          the Videos.

     d.   REPORTING.  Broadcast.com will provide Trimark access to a password
          protected Web page that will include the statistics relating to
          viewership of the Videos.  Such information will be updated on a
          regular basis, but not less than once per week.

     e.   PAY-PER-VIEW.  The parties may mutually agree to make the Videos
          available on a pay-per-view basis, in which case broadcast.com shall
          require Users to pay an Access Fee in order to access the Videos.  The
          parties will mutually agree upon the prices to be charged for Access
          Fees for each Video. [*]

     f.   DOWNLOADING PREVENTION.  Broadcast.com shall select the option on the
          relevant streaming software intended to prevent downloading and
          storage by the viewer.  Broadcast.com agrees to notify Trimark of any
          unauthorized downloading of the Videos of which it becomes aware.

     g.   ACCESS PAGES.  Broadcast.com will host the Access Page(s) on the
          broadcast.com domain.  The Videos will be accessible for viewing from
          such locations on the System designated by broadcast.com, including,
          but not limited to, the Access Page.  At Trimark's request,
          broadcast.com shall prepare separate Access Pages for each Video. 
          Broadcast.com will allow Trimark to link directly to the Access Pages.
          However, Trimark will not allow any third

- ---------------
[*] Certain information on this page has been omitted and filed 
separately with the Commission.  Confidential treatment has been 
requested with respect to the omitted portions.


EXHIBIT 10.105 (CONTINUED)

          party to link directly to the access page. [*]

     h.   BANNER PROMOTIONS.  Broadcast.com shall (i) actively promote the
          Videos within the broadcast.com Web site, (ii) promote any premiered
          Trimark Videos on the broadcast.com video homepage, (iii) provide
          Trimark with a monthly listing within the broadcast.com general
          newsletter, (iv) designate Trimark as a preferred content provider,
          (v) use its reasonable efforts to enable Trimark to work with
          broadcast.com partners, (vi)  [*], (vii) provide a hyperlink to 
          Trimark's Web site from the Access Page.  Broadcast.com will also
          promote the video channel in a manner consistent with the promotions
          of its other channels, and (viii) [*].

     i.   BROADCAST INVENTORY.  Trimark and broadcast.com will have the right to
          sell Broadcast Inventory of the Videos  [*].  [*]  Trimark
          agrees that it will not select placement of Broadcast Inventory sold
          by Trimark over that sold by broadcast.com other than in cases in
          which both parties have sold the same Broadcast Inventory at the same
          time.  Trimark will be solely responsible for inserting the Broadcast
          Inventory advertising into the Videos prior to delivery to
          broadcast.com.  Trimark acknowledges and agrees that the Broadcast
          Inventory shall comprise no more than ten (10) minutes per hour of any
          Video.  Notwithstanding any other provision of this Agreement,
          broadcast.com shall have the right, in its sole discretion, to refuse
          to display any portion of the Broadcast Inventory if it would conflict
          with the exclusive advertising rights granted by broadcast.com to any
          third party, if it would violate the rights of any person, if it would
          violate the laws of any jurisdiction, or would be likely to cause
          commercial or reputational harm to broadcast.com as determined by
          broadcast.com in its sole discretion; provided that broadcast.com
          notify Trimark in advance of its decision not to display such
          Broadcast Inventory.

     j.   ADVERTISING.  Notwithstanding any other provision of this Agreement,
          Trimark acknowledges that broadcast.com shall retain the exclusive
          right to sell all advertising, and all revenue derived therefrom,
          including sponsorships of the Videos and Access Pages, audio/video
          gateway advertising, and all other advertising that appears on the
          Access Pages, and shall accept or refuse any such

- ---------------
[*] Certain information on this page has been omitted and filed 
separately with the Commission.  Confidential treatment has been 
requested with respect to the omitted portions.


EXHIBIT 10.105 (CONTINUED)

          advertising in its sole discretion.  However, broadcast.com will 
          not run advertisements on the Access Pages for any video 
          specified by Trimark for alcohol, tobacco, gambling, pornography, 
          or political endorsements. Broadcast.com further agrees that it 
          will remove any other advertising from the Access Pages with 
          respect to which Trimark provides written notice stating its 
          reasonable objections to such advertising.

     k.   REGISTRATION DATABASE.  Broadcast.com intends to maintain a
          Registration Database.  [*]  Trimark acknowledges that 
          broadcast.com does not make any representations or warranties
          regarding the reliability or accuracy of the Registration Database for
          these purposes.  Trimark shall treat the Registration Database as 
          broadcast.com's Confidential Information, and Trimark shall not have
          the right to sell or license the contents of the Registration Database
          or any portion thereof to any third parties, or to make any other use
          thereof, without broadcast.com's express, written consent.

     l.   NO REPRESENTATIONS.  Trimark acknowledges that broadcast.com does not
          make any representations or warranties regarding the ability or
          exposure of the System, amount of revenue to be realized from the
          System or associated advertising, and that there are no guarantees
          regarding same.

     m.   WEB SITE PROMOTION.  Broadcast.com hereby agrees to place the Trimark
          Marks on the broadcast.com Web site in accordance with Trimark's
          trademark usage guidelines, to provide a prominent hyperlink from the
          broadcast.com web site to the Access Page(s), and to promote the
          transmission, distribution, performance and display of the Videos by
          broadcast.com on the broadcast.com web site, in press materials and
          publications, and in connection with the advertising of the Videos,
          subject to Paragraph 4(b).

     n.   NO MODIFICATIONS.  Broadcast.com agrees that it will not edit or
          modify the Videos except as otherwise expressly provided herein.

     o.   MARKS.  Subject to third party contractual restrictions provided by
          broadcast.com, broadcast.com hereby grants to Trimark the right to use
          broadcast.com's Marks in print, audio, on-line and other advertising
          for the promotion of the Videos, the relationship of the Parties, and
          in other means in connection with this Agreement, all consistent

- ---------------
[*] Certain information on this page has been omitted and filed 
separately with the Commission.  Confidential treatment has been 
requested with respect to the omitted portions.


EXHIBIT 10.105 (CONTINUED)

          with Trimark's covenants set forth herein.

4.   CONFIDENTIALITY:

     a.   Each party shall maintain in strict confidence, and not disclose or
          distribute to any third person any Confidential Information of the
          other party.  Confidential Information does not include any
          information that:  (a) entered the public domain through no fault of
          the Receiving Party; (b) is rightfully received by the Receiving Party
          from a third party legally entitled to make such disclosure; (c) is
          already known to the Receiving Party prior to Disclosure by the
          Disclosing Party; (d) is required to be disclosed pursuant to
          subpoena, applicable law, or rules or regulations; (e) is
          independently developed by the Receiving Party without reference to
          any confidential or proprietary information of the Disclosing Party;
          or (f) the existence of this Agreement so long as the terms of the
          Agreement are not disclosed.

     b.   Neither party shall issue a press release or make a public
          announcement or any disclosure to any third party related to the
          transactions contemplated by this Agreement without the prior approval
          of such release by the other party.

     c.   This Agreement shall be deemed Confidential Information. The parties
          agree that prior to the disclosure of this agreement or any of its
          terms pursuant to the requirements of any applicable law or otherwise,
          that they shall cooperate in good faith to seek confidential treatment
          of the terms hereof and otherwise take such other reasonable steps to
          safeguard the confidential nature of this Agreement.

5.   SALE AND ISSUANCE OF STOCK:

     a.   SALE AND ISSUANCE OF BROADCAST.COM STOCK.  Subject to the terms and
          conditions set forth in this Agreement, on the Closing Date (as
          defined in Paragraph 10(k)) broadcast.com shall sell and issue to
          Trimark, and Trimark shall purchase from broadcast.com 45,858 shares
          of broadcast.com's common stock, par value $0.01 per share (the
          "Broadcast.com Stock"), in exchange for the number and kind of shares
          described in Section 5b below and the license and other rights granted
          to broadcast.com under this Agreement.  On the Closing Date,
          broadcast.com will acknowledge receipt of the consideration provided
          in Section 5(b) below representing the purchase price for the
          Broadcast.com Stock and Trimark will acknowledge receipt of
          broadcast.com's stock certificate representing


EXHIBIT 10.105 (CONTINUED)

          the Broadcast.com Stock.

     b.   SALE AND ISSUANCE OF HOLDINGS STOCK.  Subject to the terms and
          conditions set forth in this Agreement on the Closing Date, Holdings
          shall sell and issue to broadcast.com, and broadcast.com shall
          purchase from Holdings 412,363 shares of Holding's common stock, par
          value $0.01 per share (the "Trimark Stock"), in exchange for the
          number and kind of shares described in Section 5a above.  On the
          Closing Date, Trimark will acknowledge receipt of the consideration
          provided in Section 5a above representing payment in full for the
          Trimark Stock and the license and other rights granted to
          broadcast.com under this Agreement and broadcast.com will acknowledge
          receipt of Holdings stock certificate representing the Trimark Stock.

     c.   REPRESENTATIONS AND WARRANTIES OF ISSUER.

          (a)  REPRESENTATIONS AND WARRANTIES OF BROADCAST.COM AS ISSUER. 
               Broadcast.com represents and warrants to Trimark in connection
               with the sale and issuance of the Broadcast.com Stock as follows:

               i.    ORGANIZATION AND STANDING.  Broadcast.com is a corporation
                     duly organized, validly existing under and by virtue of
                     the laws of the State of Delaware and is in good standing
                     under such laws.

               ii.   AUTHORIZATION.  On the Closing Date, the shares of the
                     Broadcast Stock will be duly authorized and, when
                     delivered, will be duly and validly issued and
                     outstanding, fully paid and nonassessable, and are free to
                     the holders thereof of any liens, encumbrances and
                     restrictions.  No person has any right of first refusal or
                     any preemptive rights in connection with the issuance of
                     the shares of the Broadcast Stock.

               iii.  COMPLIANCE WITH OTHER INSTRUMENTS.  Broadcast.com is not
                     in violation of any term of its Certificate of
                     Incorporation or Bylaws, or any material agreement,
                     mortgage, indenture, debenture, trust, instrument,
                     judgment, decree, order, statute, rule or governmental
                     regulation to which it is subject (the "Other
                     Instruments") except for such failures as individually or
                     in the aggregate would not have a material adverse effect
                     on the results of operations or financial condition (a
                     "Material


EXHIBIT 10.105 (CONTINUED)

                     Adverse Effect") of broadcast.com.  The execution, delivery
                     and performance of this Agreement and the issuance and sale
                     of the Broadcast Stock, or the taking of any other action
                     contemplated by this Agreement will not result in any 
                     material violation of or be in conflict with or constitute
                     a material default (with or without notice, lapse of time
                     or both) under any of the Other Instruments, except for 
                     such violations or conflicts which would not have a 
                     Material Adverse Effect.

               iv.   SEC REPORTS.  Broadcast.com has delivered or made
                     available to Trimark copies of the following reports of
                     broadcast.com (the "SEC REPORTS") heretofore filed with
                     the SEC:  Registration Statement on Form S-1 (Reg.
                     No. 333.52877) in the form declared effective by the SEC,
                     Form 10-Q for the fiscal quarters ended September 30, 1998
                     and June 30, 1998.  Except as disclosed therein, none of
                     the SEC Reports as of their respective dates of filing
                     contained any untrue statement of a material fact or
                     omitted to state a material fact necessary in order to
                     make the statements made therein, in light of the
                     circumstances under which they were made, not misleading. 
                     The financial statements of broadcast.com included in the
                     SEC Reports, with the notes thereto, are in accordance
                     with the books and records of broadcast.com, have been
                     prepared in accordance with generally accepted accounting
                     principles applied on a consistent basis (except as may be
                     stated in the notes to such statements and, in the case of
                     unaudited statements, as permitted by Form 10-Q)
                     throughout the periods covered by such statements and
                     present fairly (subject, in the case of unaudited
                     statements, to normal year-end adjustments) in all
                     material respects the financial condition of broadcast.com
                     and the results of its operations and cash flows for the
                     periods indicated.

               v.    ABSENCE OF CHANGES.  Since the December 31, 1997, there
                     has been no event or condition of any character
                     specifically relating to broadcast.com which is likely to
                     have a Material Adverse Effect.

               vi.   LITIGATION.  Except as set forth in the SEC Reports, there
                     are no litigation, claims, actions, proceedings or
                     investigations pending or, to the knowledge of the
                     broadcast.com,


EXHIBIT 10.105 (CONTINUED)

                     threatened against broadcast.com, which might have a 
                     Material Adverse Effect.

               vii.  OFFERING.  Subject to the accuracy of the Trimark's
                     representations in Section 5 c(b) and 5 d(b) of this
                     Agreement, the offer, issuance and sale of the
                     Broadcast.com Stock constitute transactions exempt from
                     the registration and prospectus delivery requirements of
                     Section 5 of the Securities Act and broadcast.com has
                     obtained (or is exempt from the requirement to obtain) all
                     qualifications, permits, and other consents required by
                     all applicable state laws governing the offer, sale or
                     issuance of securities.

               viii. GOVERNMENTAL CONSENTS.  On the Closing Date, no permit,
                     consent, approval or authorization of, or declaration to
                     or filing with, any governmental authority is required on
                     behalf of broadcast.com in connection with the execution,
                     delivery or performance of this Agreement or the
                     consummation of any transaction contemplated hereby,
                     except as have been obtained or accomplished or as would
                     not have a Material Adverse Effect.

               ix.   COMPLIANCE WITH LAWS.  Broadcast.com is not in violation
                     of any law, regulation or requirement (including, but not
                     limited to, any law, regulation or requirement governing
                     the quality of the environment) which might have Material
                     Adverse Effect, and broadcast.com has not received notice
                     of any such violation.

               x.    BROKERS.  No finder, broker, agent, financial advisor or
                     other intermediary has acted on behalf of broadcast.com in
                     connection with the offering of the Broadcast.com Stock or
                     the negotiation or consummation of this Agreement or any
                     of the transactions contemplated hereby.

          (b)  REPRESENTATIONS AND WARRANTIES OF TRIMARK AS ISSUER.  Trimark
               represents and warrants to broadcast.com in connection with the
               sale and issuance of the Trimark Stock as follows:

               i.    ORGANIZATION AND STANDING.  Holdings is a corporation duly
                     organized, validly existing under and by virtue of the
                     laws of the State of Delaware and is in good standing
                     under such laws.


EXHIBIT 10.105 (CONTINUED)

               ii.   AUTHORIZATION.  On the Closing Date, the shares of the
                     Trimark Stock will be duly authorized and, when delivered,
                     will be duly and validly issued and outstanding, fully
                     paid and nonassessable, and are free to the holders
                     thereof of any liens, encumbrances and restrictions.  No
                     person has any right of first refusal or any preemptive
                     rights in connection with the issuance of the shares of
                     the Trimark Stock.

               iii.  COMPLIANCE WITH OTHER INSTRUMENTS.  Each of Pictures,
                     Holdings, Television, and Music are not in violation of
                     any term of their respective Charter, or any material
                     agreement, mortgage, indenture, debenture, trust,
                     instrument, judgment, decree, order, statute, rule or
                     governmental regulation to which each are subject (the
                     "Other Instruments") except for such failures as
                     individually or in the aggregate would not have a material
                     adverse effect on the results of operations or financial
                     condition (a "Material Adverse Effect") of each of
                     Pictures, Holdings, Television and Music.  The execution,
                     delivery and performance of this Agreement and the
                     issuance and sale of the Trimark Stock, or the taking of
                     any other action contemplated by this Agreement will not
                     result in any material violation of or be in conflict with
                     or constitute a material default (with or without notice,
                     lapse of time or both) under any of the Other Instruments,
                     except for such violations or conflicts which would not
                     have a Material Adverse Effect.

               iv.   SEC REPORTS.  Holdings has delivered or made available to
                     broadcast.com copies of the following reports of
                     broadcast.com (the "SEC REPORTS") heretofore filed with
                     the SEC:  Form 10-K for the fiscal year ended June 30,
                     1998, and Form 10-Q for the fiscal quarter ending
                     September 30, 1998, and December 31, 1998.  Except as
                     disclosed therein, none of the SEC Reports as of their
                     respective dates of filing contained any untrue statement
                     of a material fact or omitted to state a material fact
                     necessary in order to make the statements made therein, in
                     light of the circumstances under which they were made, not
                     misleading.  The financial statements of Holdings included
                     in the SEC Reports, with the notes thereto, are in
                     accordance with the books and records of


EXHIBIT 10.105 (CONTINUED)

                     Holdings have been prepared in accordance with generally
                     accepted accounting principles applied on a consistent
                     basis (except as may be stated in the notes to such 
                     statements and, in the case of unaudited statements, as
                     permitted by Form 10-Q) throughout the periods covered by
                     such statements and present fairly (subject, in the case of
                     unaudited statements, to normal year-end adjustments) in
                     all material respects the financial condition of Trimark
                     and the results of its operations and cash flows for the
                     periods indicated.

               v.    ABSENCE OF CHANGES.  Since June 30, 1998, there has been
                     no event or condition of any character specifically
                     relating to Pictures, Holdings, Television or Music which
                     is likely to have a Material Adverse Effect.

               vi.   LITIGATION.  Except as set forth in the SEC Reports, there
                     are no litigation, claims, actions, proceedings or
                     investigations pending or, to the knowledge of Trimark,
                     threatened against Trimark which might have a Material
                     Adverse Effect.

               vii.  OFFERING.  Subject to the accuracy of the broadcast.com's
                     representations in Section 5 c(a) and 5 d(a) of this
                     Agreement, the offer, issuance and sale of the Trimark
                     Stock constitute transactions exempt from the registration
                     and prospectus delivery requirements of Section 5 of the
                     Securities Act and Holdings has obtained (or is exempt
                     from the requirement to obtain) all qualifications,
                     permits, and other consents required by all applicable
                     state laws governing the offer, sale or issuance of
                     securities.

               viii. GOVERNMENTAL CONSENTS.  On the Closing Date, no permit,
                     consent, approval or authorization of, or declaration to
                     or filing with, any governmental authority is required on
                     behalf of Trimark in connection with the execution,
                     delivery or performance of this Agreement or the
                     consummation of any transaction contemplated hereby,
                     except as have been obtained or accomplished or as would
                     not have a Material Adverse Effect.

               ix.   COMPLIANCE WITH LAWS.  Trimark is not in violation of any
                     law, regulation or requirement (including, but not limited
                     to, any law,


EXHIBIT 10.105 (CONTINUED)

                     regulation or requirement governing the quality of the 
                     environment) which might have Material Adverse Effect, and
                     Pictures, Holdings, Television or Music have not received 
                     notice of any such violation.

               x.    BROKERS.  Other than as specified on Exhibit B, no finder,
                     broker, agent, financial advisor or other intermediary has
                     acted on behalf of Pictures, Holdings, Television or Music
                     in connection with the offering of the Trimark Stock or
                     the negotiation or consummation of this Agreement or any
                     of the transactions contemplated hereby.

     d.   REPRESENTATIONS AND WARRANTIES OF PURCHASER.
          (a)  REPRESENTATIONS AND WARRANTIES OF BROADCAST.COM AS PURCHASER. 
               Broadcast.com represents and warrants to Holdings in connection
               with its purchase of the Trimark Stock as follows:

               i.    PURCHASE ENTIRELY FOR OWN ACCOUNT.  This Agreement is made
                     with broadcast.com in reliance upon its representation to
                     Holdings, which by broadcast.com's execution of this
                     Agreement broadcast.com hereby confirms, that the Trimark
                     Stock to be received by it will be acquired for investment
                     for broadcast.com's own account, not as a nominee or
                     agent, and not with a view to the resale or distribution
                     of any part thereof, and  that broadcast.com has no
                     present intention of selling, granting any participation
                     in, or otherwise distributing the same.  By executing this
                     Agreement, broadcast.com further represents that it does
                     not have any contract, undertaking, agreement or
                     arrangement with any person to sell, transfer or grant
                     participations to such person or to any third person, with
                     respect to any of the Trimark Stock.

               ii.   DISCLOSURE OF INFORMATION.  Broadcast.com has received all
                     of the information it considers necessary or appropriate
                     for deciding whether to purchase the Trimark Stock. 
                     Broadcast.com has had an opportunity to ask questions and
                     receive answers from Holdings regarding the terms and
                     conditions of the offering of the Trimark Stock.  The
                     foregoing, however, does not limit or modify the
                     representations and warranties of Trimark in Section 5
                     c(b) or 5 d(b) of this Agreement.


EXHIBIT 10.105 (CONTINUED)

               iii.  INVESTMENT EXPERIENCE.  Broadcast.com acknowledges that it
                     is able to fend for itself, can bear the economic risk of
                     its investment and has such knowledge and experience in
                     financial or business matters that it is capable of
                     evaluating the merits and risks of the investment in the
                     Trimark Stock.

               iv.   RESTRICTED SECURITIES.  Broadcast.com understands that the
                     Trimark Stock it is purchasing is characterized as
                     "restricted securities" under the federal securities laws
                     inasmuch as they are being acquired from Holdings in a
                     transaction not involving a public offering and that under
                     such laws and applicable regulations such securities may
                     be resold without registration under the Securities Act,
                     only in certain limited circumstances.  In this
                     connection, broadcast.com represents that it is familiar
                     with Rule 144, as presently in effect, and understands the
                     resale limitations imposed thereby and by the Securities
                     Act.

               v.    ACCREDITED INVESTOR.  Broadcast.com is an accredited
                     investor as defined in Rule 501(a) of Regulation D
                     promulgated under the Securities Act.

          (b)  REPRESENTATIONS AND WARRANTIES OF PICTURES AS PURCHASER. 
               Pictures represents and warrants to broadcast.com in connection
               with its purchase of the Broadcast.com Stock as follows:

               i.    PURCHASE ENTIRELY FOR OWN ACCOUNT.  This Agreement is made
                     with Pictures in reliance upon its representation to
                     broadcast.com, which by Pictures' execution of this
                     Agreement Pictures hereby confirms, that the Broadcast.com
                     Stock to be received by it will be acquired for investment
                     for Picture's own account, not as a nominee or agent, and
                     not with a view to the resale or distribution of any part
                     thereof, and that Pictures has no present intention of
                     selling, granting any participation in, or otherwise
                     distributing the same.  By executing this Agreement,
                     Pictures further represents that it does not have any
                     contract, undertaking, agreement or arrangement with any
                     person to sell, transfer or grant participations to such
                     person or to any third person, with respect to any of the
                     Broadcast.com Stock.


EXHIBIT 10.105 (CONTINUED)

               ii.   DISCLOSURE OF INFORMATION.  Pictures has received all of
                     the information it considers necessary or appropriate for
                     deciding whether to purchase the Broadcast.com Stock. 
                     Pictures has had an opportunity to ask questions and
                     receive answers from broadcast.com regarding the terms and
                     conditions of the offering of the Broadcast.com Stock. 
                     The foregoing, however, does not limit or modify the
                     representations and warranties of broadcast.com in Section
                     5 c(a) or 5 d(a) of this Agreement.

               iii.  INVESTMENT EXPERIENCE.  Pictures acknowledges that it is
                     able to fend for itself, can bear the economic risk of its
                     investment and has such knowledge and experience in
                     financial or business matters that it is capable of
                     evaluating the merits and risks of the investment in the
                     Broadcast.com Stock.

               iv.   RESTRICTED SECURITIES.  Pictures understands that the
                     Broadcast.com Stock it is purchasing is characterized as
                     "restricted securities" under the federal securities laws
                     inasmuch as they are being acquired from broadcast.com in
                     a transaction not involving a public offering and that
                     under such laws and applicable regulations such securities
                     may be resold without registration under the Securities
                     Act, only in certain limited circumstances.  In this
                     connection, Pictures represents that it is familiar with
                     Rule 144, as presently in effect, and understands the
                     resale limitations imposed thereby and by the Securities
                     Act.

               v.    ACCREDITED INVESTOR.  Pictures is an accredited investor
                     as defined in Rule 501(a) of Regulation D promulgated
                     under the Securities Act.

     f.   RULE 144 COMPLIANCE.  At all times after the date hereof, each of
          broadcast.com and Holdings agrees to take such action as may be
          necessary to enable a holder of its shares to complete the public sale
          of such shares in accordance with Rule 144.

     g.   DELIVERY OF CERTIFICATES.  Each party will deliver certificates
          representing the purchase of the stock by each party pursuant to this
          paragraph by no later than thirty days after the Closing Date.

     h.   LEGEND.  The parties hereto further agree that any certificate
          evidencing the Broadcast.com Stock or the


EXHIBIT 10.105 (CONTINUED)

          Trimark Stock Securities shall bear one or more of the following 
          legends:

          (a)  THE SHARES EVIDENCED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
               UNDER THE SECURITIES ACT OF 1933, AS AMENDED, HAVE BEEN TAKEN FOR
               INVESTMENT, AND MAY NOT BE SOLD, TRANSFERRED, ASSIGNED, PLEDGED,
               HYPOTHECATED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF AN
               EFFECTIVE REGISTRATION STATEMENT UNDER SAID SECURITIES ACT
               COVERING THE SALE OR OTHER TRANSFER OR AN OPINION OF COUNSEL,
               WHICH COUNSEL AND OPINION ARE REASONABLY SATISFACTORY TO THE
               ISSUER, THAT REGISTRATION UNDER THE SECURITIES ACT AND APPLICABLE
               STATE SECURITIES LAWS IS NOT REQUIRED.

          (b)  Any legend required by the laws of any state or other
               jurisdiction.

6.   TRIMARK REPRESENTATIONS AND WARRANTIES:

     a.   Trimark has all requisite corporate power and authority to execute and
          deliver this Agreement, to perform its obligations hereunder and to
          consummate the transactions contemplated hereby.  Subject to the
          approval of its Board of Directors, this Agreement has been duly
          authorized, executed and delivered by Trimark, constitutes the valid
          and binding agreement of Trimark, and is enforceable against Trimark
          in accordance with its terms.

     b.   Trimark hereby represents and warrants to broadcast.com that (i) the
          Videos are owned by or licensed to Trimark, (ii) Trimark has all
          necessary rights and licenses to sell and distribute the Videos as
          provided herein, (iii) Trimark holds all rights material to this
          Agreement throughout the territories and license period set forth of
          the applicable Exhibit A or replacement Exhibit A, including the
          encoding, transmission, retransmission, distribution, performance,
          display and broadcast of the Videos and the Broadcast Inventory by
          broadcast.com, (iv) broadcast.com's copying of the Videos contemplated
          by this Agreement and broadcast.com's exercise of any rights granted
          by Trimark herein, will not violate or infringe any right of privacy
          or publicity, any copyright, trademark, moral right or other
          intellectual property right, or, to the best of Trimark's knowledge,
          any other right of any third party, and (v) the Videos and Broadcast
          Inventory as provided by Trimark to broadcast.com to the best of
          Trimark's knowledge do not contain any libelous, defamatory, obscene
          or unlawful material.


EXHIBIT 10.105 (CONTINUED)

     c.   Trimark will be solely responsible for the acquisition of any and all
          third party clearances, permissions and licenses which are necessary
          in connection with the broadcast by broadcast.com of the Videos in
          accordance with this Agreement and Broadcast Inventory sold by Trimark
          throughout the territories specified on Exhibit A or applicable
          replacement Exhibit A, including, without limitation, with respect to
          the use of any copyrighted and/or trademarked materials and the use of
          the name, likeness and/or biographical materials, and for the payment
          of all applicable guild fees, and/or any music licensing fees relating
          to or arising from broadcast.com's activities under this agreement.

     d.   Trimark warrants, represents and agrees that, to the extent required,
          Trimark will obtain all requisite consents and permissions of labor
          organizations and pay any and all residuals, payments, fees or
          royalties, if any, payable under any collective bargaining agreement
          or otherwise, in connection with broadcast.com's exercise of the
          rights granted under this agreement.  By way of example, and not
          limitation or obligation, as between broadcast.com and Trimark,
          Trimark would be liable to pay any residuals required to be paid under
          any "Basic Agreement" of the Director's Guild of America, the Writer's
          Guild of America, or the Screen Actor's Guild for "Supplemental
          Market" showings of the licensed Videos.  Broadcast.com shall provide
          to Trimark all information concerning the transmission and
          distribution of the Videos as is reasonably necessary for Trimark to
          comply with the obligations of this subparagraph.

     e.   Trimark warrants, represents, and agrees that Trimark shall comply
          with all legal restrictions on its use of the Registration Database.

     f.   Trimark warrants that it has obtained professional media insurance in
          the amount of $1,000,000 per occurrence and $3,000,000 in the
          aggregate to cover all risks relevant to this Agreement and that
          broadcast.com is an additional insured party.

     g.   Trimark warrants that all applicable territory and period limitations
          will be provided by Trimark on Exhibit A and any replacement Exhibit A
          and that such limitations will be no greater for any Video than the
          contractual limitations to which Trimark is bound pursuant to its
          third party agreements relating to such Video.

     h.   Trimark warrants that it shall use its best efforts, with regard to
          any new Videos to be distributed by Trimark


EXHIBIT 10.105 (CONTINUED)

          after the effective date of this Agreement, to secure for the term 
          of this Agreement the worldwide right to broadcast/distribute such 
          Videos on the Internet in all manners contemplated in this 
          Agreement, along with the right to grant all necessary sublicenses 
          to broadcast.com to exercise those rights.  Notwithstanding the 
          foregoing, Trimark shall be entitled to license certain videos to 
          other Internet broadcasters on an exclusive basis; provided that 
          Trimark offers broadcast.com the right of first refusal with 
          respect to the acquisition of the exclusive rights to such videos 
          under the same terms and conditions.  Broadcast.com will notify 
          Trimark within two business days of receipt of such offer as to 
          whether broadcast.com will enter into an agreement with Trimark 
          upon the same terms and conditions.  If broadcast.com does not 
          provide Trimark such notification within the requisite time period, 
          it will be deemed to have rejected the offer.

7.   BROADCAST.COM REPRESENTATIONS AND WARRANTIES:

            a.   Broadcast.com has all requisite corporate power and authority
                 to execute and deliver this Agreement, to perform its 
                 obligations hereunder, and to consummate the transactions
                 contemplated hereby. Subject to the approval of its Board of
                 Directors, this Agreement has been duly authorized, executed 
                 and delivered by broadcast.com, constitutes the valid and
                 binding agreement of broadcast.com, and enforceable against 
                 broadcast.com in accordance with its terms.

            b.   Trimark shall not be required to pay any expense related to the
                 transmission and/or distribution of the Videos by 
                 broadcast.com, except as otherwise specified in this Agreement.

            c.   Broadcast.com warrants that it has obtained professional media
                 insurance in the amount of $1,000,000 per occurrence and 
                 $3,000,000 in the aggregate to cover all risks relevant to this
                 Agreement and that broadcast.com is an additional insured 
                 party.

            d.   Broadcast.com warrants that it will comply with the period
                 restrictions specified on the most recently received 
                 replacement Exhibit A and such other contractual restrictions
                 provided to broadcast.com in advance of the broadcast and in 
                 writing by Trimark. Broadcast.com warrants that it will also 
                 comply with the territorial restrictions specified on such 
                 Exhibit A by requiring Users to enter in their zip code and 
                 limiting access to the Videos to such Users that do not enter
                 in a zip code within the unrestricted territories.


EXHIBIT 10.105 (CONTINUED)

            e.   Broadcast.com warrants that at all times, the Videos are and
                 shall continue to be the property of Trimark, and nothing 
                 herein shall be deemed to transfer ownership or control of any
                 kind to broadcast.com or any third party.

8.   INDEMNIFICATION:

            a.   Trimark agrees to indemnify and hold harmless broadcast.com and
                 its officers, directors, employees and agents from and against
                 any and all losses, claims, damages, liabilities, obligations,
                 penalties, judgments, awards, costs, expenses and 
                 disbursements, including without limitation, the costs, 
                 expenses and disbursements, as and when incurred, of 
                 investigating, preparing or defending any action, suit,
                 proceeding or investigation, caused by, relating to, based 
                 upon, arising out of or in connection with any breach by 
                 Trimark of the representations, warranties or agreements made
                 by it under this Agreement.

            b.   Broadcast.com agrees to indemnify and hold harmless Trimark and
                 its officers, directors, employees and agents from and against
                 any and all losses, claims, damages, liabilities, obligations,
                 penalties, judgments, awards, costs, expenses and 
                 disbursements, including without limitation, the costs, 
                 expenses and disbursements, as and when incurred, of 
                 investigating, preparing or defending any action, suit, 
                 proceeding or investigation, caused by, relating to, based 
                 upon, arising out of or in connection with any breach by 
                 broadcast.com of the representations, warranties or agreements
                 made by it under this Agreement.

9.   TERM:

            a.   This Agreement shall be effective on the later of the Closing 
                 Date or March 15, 1999 and shall terminate on January 31, 2001.
                 The parties agree that within 180 days prior to the expiration 
                 of the term of this Agreement they will enter into good faith 
                 negotiations for a period of not less than thirty days to 
                 extend this Agreement. After the expiration of this Agreement, 
                 broadcast.com shall cease any advertising or broadcast of the 
                 Videos, except as otherwise expressly approved in writing by 
                 Trimark and agreed to by broadcast.com.

            b.   Notwithstanding the foregoing, either party 
                 shall have the right at any time to terminate this Agreement, 
                 effective upon the other party's receipt of termination 
                 notice, without prejudice to any other legal rights to which 
                 such terminating party may be entitled, upon the occurrence 
                 of any one or more of the other party's


EXHIBIT 10.105 (CONTINUED)

                 failure to comply in any respect with its material obligations,
                 representations or warranties contained in this Agreement, and
                 such party's failure to cure the same within thirty (30) days
                 of receipt of notice of such failure.

10.  GENERAL:

            a.   This Agreement shall constitute the entire 
                 understanding between the Parties, and supersedes all prior 
                 negotiations or understandings between the Parties concerning 
                 the subject matter contained herein.

            b.   Each party acknowledges and agrees that: (i) 
                 the other party's Marks are and shall remain the sole 
                 property of the other party, (ii) nothing in this Agreement 
                 shall confer in the party any right of ownership in the other 
                 party's Marks, and (iii) the party shall not now or in the 
                 future contest the validity of the other party's Marks.

            c.   All provisions hereof regarding amounts payable by Trimark to
                 broadcast.com and by broadcast.com to Trimark (as applicable)
                 shall survive the expiration or earlier termination of this 
                 Agreement until such amounts are paid in full to the payee; 
                 further provided, Paragraphs 4, 5, 6, 7, 8 and 9, and all 
                 portions of this Agreement limiting the use of any Confidential
                 Information, shall survive termination or expiration of this 
                 Agreement.

            d.   This Agreement shall be governed by the laws 
                 of the State of Delaware applicable to contracts entered into 
                 and to be performed entirely within the State of Delaware.  
                 The parties agree to submit to binding arbitration in 
                 accordance with the provisions of the American Arbitration 
                 Association.

            e.   BROADCAST.COM HEREBY DISCLAIMS ALL WARRANTIES, EXPRESS, IMPLIED
                 OR STATUTORY, WITH RESPECT TO THE SERVICES PROVIDED HEREUNDER, 
                 EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT.

            f.   BROADCAST.COM SHALL NOT BE LIABLE FOR ANY LOSS OF DATA, OR ANY
                 INTERRUPTION OF SERVICE, DUE TO ANY CAUSE, DUE TO ANY FACTORS
                 NOT WITHIN BROADCAST.COM'S CONTROL.

            g.   The parties hereto are independent parties, and no partnership,
                 joint venture, enterprise or employment relationship shall be
                 created or inferred by the existence or performance of this 
                 Agreement.

            h.   Should any part of this Agreement be found to be illegal


EXHIBIT 10.105 (CONTINUED)

                 or otherwise unenforceable, both Parties shall continue to be 
                 bound under the remaining parts of the Agreement, if the 
                 purpose and intent of the Parties can be carried out under the 
                 remaining parts of the Agreement. A facsimile signature shall 
                 be deemed an original for purposes of this Agreement.  The 
                 headings of this Agreement are for convenience of reference 
                 only, and do not limit or alter the Parties' respective rights 
                 and obligations under this Agreement.

            i.   This Agreement shall be binding upon and 
                 inure to the benefit of the Parties hereto and their 
                 respective successors, assigns or purchaser of the respective 
                 companies.  Neither party may assign this Agreement without 
                 the consent of the other party, provided, however, no such 
                 consent shall be required for any assignment to any person in 
                 connection with a transaction with such person, or any 
                 affiliate of such person, involving the merger, 
                 consolidation, recapitalization or other reorganization, or 
                 the sale or transfer to such person, or any affiliate of such 
                 person, of all or substantially all of such party's assets.

            j.   Any and all notices, communications and 
                 demands required herein by either party hereto shall be in 
                 writing and shall deemed to have been given when:  (a) served 
                 personally to the addresses listed below; (b) served by a 
                 recognized overnight delivery service such as Federal 
                 Express, UPS or Express Mail to the addresses listed below; 
                 (c) served by United States Mail, certified, postage prepaid, 
                 return receipt requested to the addresses listed below, or 
                 (d) received by facsimile (as evidenced by the transmission 
                 report of the facsimile machine of the transmitting party 
                 acknowledging a good transmission) if sent by facsimile to 
                 the numbers listed below:

                 IF TO TRIMARK, TO:            IF TO BROADCAST.COM, TO:
                 C/o Trimark Pictures, Inc     broadcast.com inc.
                 2644 30th Street              2914 Taylor Street
                 Santa Monica, CA 90405        Dallas, TX 75226
                 Telephone:  310/314-2000      Telephone:  214/748-6660
                 Facsimile:  310/452-8934      Facsimile:  214/748-6657

                 att'n: Senior VP,             att'n: Belinda Johnson,
                        Business Affairs              General Counsel

            k.   CLOSING.

                 (a)  The obligations of broadcast.com to consummate the 
                      transactions contemplated by this Agreement shall, at its 
                      option, be subject to the satisfaction at or


EXHIBIT 10.105 (CONTINUED)

                      prior to March 15, 1999, of the 
                      following conditions:  (i) there shall have been no 
                      material breach by Trimark of any its obligations 
                      hereunder and Trimark's representations and warranties 
                      shall be true and correct in all material respects as 
                      though made on the Closing Date; (ii) Trimark shall have 
                      qualified the Trimark Stock for listing on the principal 
                      exchange or trading system on which shares of Holdings 
                      Common Stock are listed or quoted; (iii) Trimark shall 
                      have secured all third party consents required for 
                      consummation of the transactions contemplated hereby; 
                      (iv) broadcast.com's board of directors shall have 
                      approved this Agreement and the consummation of the 
                      transactions contemplated hereby.

                 (b)  The obligations of Trimark to 
                      consummate the transactions contemplated by this 
                      Agreement shall, at its option, be subject to the 
                      satisfaction at or prior to March 15, 1999, of the 
                      following conditions:  (i) there shall have been no 
                      material breach by broadcast.com of any its obligations 
                      hereunder and broadcast.com's representations and 
                      warranties shall be true and correct in all material 
                      respects as though made on the Closing Date; (ii) 
                      broadcast.com shall have qualified the Broadcast.com 
                      Stock for quotation on the Nasdaq National Market; (iii) 
                      broadcast.com shall have secured all third party 
                      consents required for consummation of the transactions 
                      contemplated hereby; (iv) Trimark's board of directors 
                      shall have approved this Agreement and the consummation 
                      of the transactions contemplated hereby.

                 (c)  The parties hereto agree to use 
                      their reasonable best efforts to cause the satisfaction 
                      of the conditions set forth herein as soon as reasonably 
                      practicable and in any event prior to March 15, 1999.  
                      In the event that a party learns that any such condition 
                      will not be able to be satisfied prior to March 15, 
                      1999, or at all, such party will promptly notify the 
                      other parties hereto. The closing of the transactions 
                      contemplated hereby shall occur two business days after 
                      the satisfaction or waiver of satisfaction of the 
                      conditions set forth above.  The date of the closing is 
                      referred to herein as the "Closing Date."  The parties 
                      agree to solicit board approval and all other necessary 
                      consents by no later than February 28, 1999.



EXHIBIT 10.105 (CONTINUED)

                           [PAGE INTENTIONALLY LEFT BLANK]


EXHIBIT 10.105 (CONTINUED)


IN WITNESS WHEREOF, the Parties hereto have caused the foregoing agreement to 
be signed by a duly authorized agent of each party, the day and year first 
above written.

TRIMARK HOLDINGS, INC:               BROADCAST COM INC.:


By:  /S/                             By:       /S/
Name:  Mark Amin                          Mark Cuban, President
Title:  Chairman & CEO

DATE:                                DATE:

TRIMARK PICTURES, INC:

By:  /S/
Name:  Mark Amin
Title:  Chairman & CEO

DATE:

TRIMARK TELEVISION, INC:

By:  /S/
Name:  Mark Amin
Title:  Chairman & CEO

DATE:

TRIMARK MUSIC:

By:  /S/ 
Name:  Mark Amin
Title:  Chairman & CEO

DATE:



EXHIBIT 10.105 (CONTINUED)

                                      EXHIBIT A

                                        VIDEOS
[*]                                    [*]
[*]                                    [*]
[*]                                    [*]
[*]                                    [*]
[*]                                    [*]
[*]                                    [*]
[*]                                    [*]
[*]                                    [*]
[*]                                    [*]
[*]                                    [*]
[*]                                    [*]
[*]                                    [*]
[*]                                    [*]
[*]                                    [*]
[*]                                    [*]
[*]                                    [*]
[*]                                    [*]
[*]                                    [*]
[*]                                    [*]
[*]                                    [*]
[*]                                    [*]
[*]                                    [*]
Leprechaun                             [*]
[*]                                    Warlock
[*]                                    [*]
[*]                                    [*]
[*]                                    [*]

- ---------------
[*] Certain information on this page has been omitted and filed 
separately with the Commission.  Confidential treatment has been 
requested with respect to the omitted portions.


EXHIBIT 10.105 (CONTINUED)
                                      EXHIBIT B [*]
                          
                                TRIMARK BROKERS FEES



- ---------------
[*] Certain information on this page has been omitted and filed 
separately with the Commission.  Confidential treatment has been 
requested with respect to the omitted portions.


EXHIBIT 10.105 (CONTINUED)

                           [Trimark Pictures Letterhead]




February 19, 1999

VIA FACSIMILE TRANSMISSION
(310) 859-2788

Ray Manzella
c/o Leigh Brecheen
Bloom, Hergott, Cook,
Diemer and Klein, LLP
150 South Rodeo Drive
Third Floor
Beverly Hills, CA  90212

RE: RAY MANZELLA/ TRIMARK PICTURES/ BROADCAST.COM

Dear Leigh:

            This letter shall confirm our conversation regarding the above 
referenced matter.  The parties have agreed that in the event that Trimark 
and Broadcast.com execute an agreement within the next ninety (90) days 
(subject to reasonable extension to accommodate same negotiations) which 
embodies an investment in Trimark Pictures by Broadcast.com (whether in the 
form of cash or stock including a stock swap), Manzella Personal Management 
shall receive a finder's fee (payable within 10 business days of Trimark's 
receipt (from time to time as the same may occur as a result of the same 
transaction) of the investment by Broadcast.com) as follows:
            
            1.   [*] percent ([*]%) of the initial One Million Dollars 
                 ($1,000,000) (or part thereof) invested in Trimark Pictures by
                  Broadcast.com; plus

            2.   [*] percent ([*]%) of the next One Million Dollars ($1,000,000)
                 (or part thereof) invested in Trimark Pictures by 
                 Broadcast.com; plus

            3.   [*] percent ([*]%) of the next One Million Dollars ($1,000,000)
                 (or part thereof) invested in Trimark Pictures by 
                 Broadcast.com; plus

            4.   [*] percent ([*]%) of any amount thereafter invested in Trimark
                 Pictures by Broadcast.com.


- ---------------
[*] Certain information on this page has been omitted and filed 
separately with the Commission.  Confidential treatment has been 
requested with respect to the omitted portions.


EXHIBIT 10.105 (CONTINUED)

     Notwithstanding the foregoing, the parties agree that the finder's fee 
payable to Ray Manzella shall not exceed Five Hundred Thousand Dollars 
($500,000) in the aggregate.
     
     At Trimark's election the finder's fee may be paid in cash or common 
stock, or a combination thereof.
     
     Both parties shall keep the nature of this agreement confidential except 
as required by law.
     
     If your understanding is in agreement with the foregoing, please so 
indicate by signing below.  Subsequently we can prepare a more formal 
document which shall supercede.
     
     Thank you for your assistance in this matter by accommodating both of 
our travel schedules.
     
Very truly yours,


  /S/
Peter Block
Senior Vice President
Acquisitions & Business Affairs
Dictated by not read

AGREED AND ACCEPTED
Manzella Personal Management

By:      /S/
     Ray Manzella

Date:      2/21/99


EXHIBIT 10.105 (CONTINUED)

                 TRIMARK PICTURES, INC.        TRIMARK HOLDINGS, INC.
                       TRIMARK TELEVISION, INC.  TRIMARK MUSIC
                                  2644 30TH  Street
                                Santa Monica, CA 90405

March 15, 1999

broadcast.com inc.
Attn: Todd Wagner
2914 Taylor Street
Dallas, Texas 75226

Dear Mr. Wagner:

            Reference is made to the agreement entered into by and between 
broadcast.com inc., Trimark Pictures, Inc., Trimark Holdings, Inc. Trimark 
Television, Inc., and Trimark Music dated as of February 22, 1999 (the 
"Agreement").

            You are hereby notified and you agree that you hereby notify us 
that qualification of stock described and required under Section 
10(k)(a)(iii) and 10(k)(b)(ii) of the Agreement will not be satisfied or 
waived on or prior to March 15, 1999.
            
            We acknowledge and you are hereby requested to agree that the 
references to March 15, 1999 in Section 10(k) of the Agreement are amended to 
refer to March 30, 1999.
            
            Please indicate your agreement, on behalf of broadcast.com inc., 
to the foregoing by signing the below and returning a copy of this letter to 
me.
            
                                          Very truly yours,

                                               /S/
                                          Mark Amin
                                          Chairman and CEO

BROADCAST.COM INC.

By:  /S/
Name: Todd Wagner
Title: Chief Executive Officer