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SCOTIABANK {LOGO}
THE BANK OF NOVA SCOTIA

New York Agency, One Liberty Plaza, New York, N.Y. 10006

                                                   June 11, 1990

Cable TV Fund 14-A/B Venture
9697 E. Mineral Avenue
Englewood, CO 80112
Attention: Kevin P. Coyle

         Re:  First Letter Amendment to Cable TV Fund 14-A/B Venture
              Revolving Credit and Term Loan Agreement

Gentlemen:

                 Reference is made to that certain Revolving Credit and Term
Loan Agreement (the "Credit Agreement"), dated as of September 30, 1988, by and
among Cable TV Fund 14-A/B Venture (the "Borrower"), The Bank of Nova Scotia
and Provident National Bank (the "Banks") and The Bank of Nova Scotia, as agent
for the Banks (the "Agent"). Capitalized terms used herein and not otherwise
defined shall have the meanings assigned to them in the Credit Agreement.

                 The Borrower desires the Banks to extend credit in excess of
the Commitments stated in the Credit Agreement, to extend the maturity date of
the Loans and to make certain other changes to the Credit Agreement. The Banks
are willing to amend the Credit Agreement for such purposes on the terms and
conditions stated in this letter.

                 Effective upon the satisfaction (or waiver by the Banks) of
all of the conditions precedent stated below, the Credit Agreement shall be
amended as follows:

                 1. Section 1.1 is amended by deleting the definition of "Term
Loan Expiration Date" and replacing it with the following language:

                 "'Term Loan Expiration Date' shall mean December 31, 1997."

                 2. Section 2.1 is amended by deleting therefrom the table of
current commitments and replacing it with the following:
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The Bank of Nova Scotia
June 11, 1990
Page 2




                                                    Percentage
"Name of Bank                 Current Commitment     Interest
- -------------                 ------------------     --------
                                                
The Bank of Nova Scotia           $35,000,000           70%

Provident National Bank           $15,000,000           30%
                                  -----------          ---- 

                 TOTAL            $50,000,000          100%"



                 3. Section 2.6(A) is hereby deleted and replaced with the
following language:

                 "(A) On March 31, June 30, September 30 and December 31 of the
years 1992, 1993, 1994, 1995, 1996 and 1997, the Term Loan Ceiling shall be
reduced by amounts equal to the following percentages of the Initial Ceiling
(regardless of whether the Term Loan Ceiling shall have been reduced pursuant
to (B) below):


                                      
                          1992             1-1/4%
                          1993             2-1/2%
                          1994             3-3/4%
                          1995             5%
                          1996             6-1/4%
                          1997             6-1/4%"


                 4. Section 6.1(a) is amended by deleting the table of ratios
of Total Debt to Annualized Cash Flow and replacing it with the following:


                                                      
         "Closing Date - December 31, 1988        6.5  to 1
         January 1, 1989 - June 30, 1989          6.0  to 1
         July 1, 1989 - December 31, 1989         5.75 to 1
         January 1, 1990 - March 31, 1990         6.50 to 1
         April 1, 1990 - September 30, 1990       6.00 to 1
         October 1, 1990 -March 31, 1991          5.75 to 1
         April 1, 1991 - December 31, 1991        5.50 to 1
         January 1, 1992 - and thereafter         5.00 to 1"


                 5. Section 6.1(b) is hereby deleted and replaced with the
following language:

                 "(b) Cash Flow/Debt Service. The ratio of Cash Flow to 
         Debt Service shall not during any fiscal quarter appearing within 
         the period set forth below be less than the amount set forth
         opposite such period:
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The Bank of Nova Scotia
June 11, 1990
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         Closing Date - December 31, 1989                 1.50 to 1
         January 1, 1990 - December 31, 1990              1.35 to 1
         January 1, 1991 - and thereafter                 1.50 to 1"


                 6. Section 6.14 is hereby deleted and replaced with the
following:

                 "6.14 Capital Expenditures. Borrower shall not make any
         Capital Expenditures which in the aggregate exceed $3,000,000 in 1988,
         $10,000,000 in 1989, $9,000,000 in 1990 or $4,500,000 in any fiscal
         year of the Borrower thereafter. No unused portion of Capital
         Expenditures permitted in any given year may be carried forward to any
         subsequent year or years. The cost of Systems purchased by Borrower
         pursuant to Section 6.11 shall be included in Capital Expenditures
         hereunder."

                 The obligation of each Bank to make any loans is subject to
the fulfillment, in form and substance satisfactory to the Agent, of the
following conditions precedent on or before June 15, 1990:

                 (a) The Agent shall have received three counterparts of this
         letter amendment duly accepted and executed by the Borrower and three
         counterparts executed by Provident National Bank.

                 (b) Each Bank shall have received a substitute Note, in the
         form of Exhibit A hereto, duly executed by the Borrower, reflecting
         the amendments to the Commitment and maturity dates contained in this
         letter (and thereafter shall return the Notes issued on September 30,
         1988 to the Borrower).

                 (c) The representations and warranties contained in Article
         III of the Credit Agreement and in the Related Documents shall be true
         on and as of the date of execution and acceptance of this letter by
         the Borrower with the same effect as though made on and as of such
         date, and no Event of Default and no Potential Default shall have
         occurred and be continuing or exist or shall occur or exist after
         giving effect to the amendments contained in this letter.
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The Bank of Nova Scotia
June 11, 1990
Page 4

                 (d) The Agent shall have received three signed copies of a
         certificate, dated the date of the Borrower's acceptance and execution
         of this letter amendment, and signed on behalf of the Borrower by the
         President, Vice President, Treasurer or Chief Financial Officer of
         Jones, to the effect that (i) the representations and warranties
         described in (c) above are true and correct on and as of such date and
         (ii) on such date no Event of Default or Potential Default has
         occurred and is continuing or exists or will occur or exist after
         giving effect to the amendments contained in this letter.

                 (e) The Agent shall have received three signed copies of
         certificates dated as of the date of the Borrower's acceptance and
         execution of this letter amendment and signed by the Secretary or
         Assistant Secretary of Jones, on behalf of Jones, the Borrower, and
         each General Partner, certifying as to any changes since the Closing
         Date, if any, in the corporate, joint venture or partnership documents
         and actions referred to in section 4.2 of the Credit Agreement, of
         Jones, the Borrower and each General Partner, respectively and, in the
         case of Jones, (i) as to the names, true signatures and incumbency of
         the officer or officers or other authorized representatives of Jones
         authorized to accept, execute and deliver this letter amendment, the
         substitute Notes and the certificate referred to in (d) above, and
         (ii) as to the resolution of the Board of Directors of Jones
         authorizing such action.

                 (f) The Agent shall have received certificates (i) of the
         Secretary of State of the State of Colorado certifying that Jones is a
         corporation in good standing and that each General Partner is a
         limited partnership in good standing, and (ii) of the Secretary of
         State of the State of Florida certifying that each General Partner is
         qualified to do business in Florida.

                 (g) The Agent, for the Banks, shall have received payment in
         full of a restructuring fee in an amount equal to one-eighth of one
         percent of the Commitment.
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The Bank of Nova Scotia
June 11, 1990
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                 Except as amended hereby, the Credit Agreement shall remain in
full force and effect. This letter amendment may be executed in two or more
counterparts, each of which shall be deemed an original.

                 If you agree to the foregoing amendments to the Credit
Agreement, execute the enclosed counterparts of this letter in the space
provided below and return them to us prior to June 15, 1990.

                                                 THE BANK OF NOVA SCOTIA,
                                                 as Agent and as a participating
                                                 Bank

                                                 By /s/ D. B. CRAWFORD
                                                    Title AGM



Accepted:

CABLE TV FUND 14-A/B VENTURE,                    Date: June 14, 1992
a Colorado general partnership

By  Cable TV Fund 14-A, Ltd.,
    Cable TV Fund 14-B, Ltd., both
    Colorado limited partnerships

    By  Jones Intercable, Inc., a
        Colorado corporation, as
        general partner of each

        By /s/ KEVIN P. COYLE
           Title VP/Treasurer
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The Bank of Nova Scotia
June 11, 1990
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PROVIDENT NATIONAL BANK, as a
participating Bank


By /s/ SCOTT C. MEVE
   Title Vice President