Exhibit 10.25


                               FIRST AMENDMENT TO
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                         EXECUTIVE EMPLOYMENT AGREEMENT
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         This First Amendment to Executive  Employment  Agreement dated the 31st
day of May, 2000, between Comcast  Corporation  ("Company") and Stephen B. Burke
("Employee"), is made on this 30th day of July, 2001.

                                   BACKGROUND
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         Employee  and  Company  have agreed to amend the  Executive  Employment
Agreement to extend its term and to provide additional  compensation to Employee
in consideration thereof.
                                    AGREEMENT
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Intending  to be legally  bound,  the  Company  and  Employee  agree as follows:

1.      Paragraph   2(iii)   of  the   Executive   Employment
        Agreement is deleted and replaced with the following:
        "(iii) July 31, 2007."

2.      The date  "March  31,  2005" in  Paragraphs  9(c) and
        11(b)  of  the  Executive   Employment  Agreement  is
        deleted and replaced with the date "July 31, 2007."

3.      A new paragraph 3(e) will be added to the Executive Employment Agreement
        as follows:

                    "(e)Additional Stock Options.
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                    (i)Contemporaneously with the execution of this First
                    Amendment to Executive Employment Agreement, the
                    Subcommittee on Performance-Based Compensation of the
                    Compensation Committee shall grant





                    Employee stock options to purchase 500,000 shares of the
                    Company's Class A Special Common Stock under the Company's
                    1996 Stock Option Plan. Such options shall vest and become
                    exercisable as follows: (1) 255,000 of such options shall
                    have a term of ten years and shall vest and become
                    exercisable 40% on the second anniversary date of the date
                    of grant and 20% on each of the third, fourth and fifth
                    anniversary dates of the date of grant; and (2) 245,000 of
                    such options shall have a term of ten years and shall vest
                    and become exercisable 20% on the second anniversary date of
                    the date of grant, 10% on each of the third, fourth, fifth,
                    sixth, seventh, eighth and ninth anniversary dates of the
                    date of grant, and the remaining 10% on the ninth year sixth
                    month anniversary date of the date of grant. (ii) Further,
                    on a date mutually selected by management and Employee
                    during calendar year 2002, the Subcommittee on
                    Performance-Based Compensation of the Compensation Committee
                    shall be requested by management to grant Employee stock
                    options to purchase an additional 500,000 shares of the
                    Company's Class A Special Common Stock. Such options shall
                    vest and become exercisable as follows: (1) 255,000 of such
                    options shall have a term of ten years and shall vest and
                    become exercisable 40% on the second anniversary date of the
                    date of grant and 20% on each of the third, fourth and fifth
                    anniversary

                                       2



                    dates of the date of grant; and (2) 245,000 of such options
                    shall have a term of ten years and shall vest and become
                    exercisable 20% on the second anniversary date of the date
                    of grant, 10% on each of the third, fourth, fifth, sixth,
                    seventh, eighth and ninth anniversary dates of the date of
                    grant, and the remaining 10% on the ninth year sixth month
                    anniversary date of the date of grant.

4.      All other  terms  and  conditions  set forth in the  Executive
        Employment Agreement shall remain in force and effect.

     IN WITNESS WHEREOF, the parties hereby have duly executed and delivered
this First Amendment to Employment Agreement, in Philadelphia, Pennsylvania.

COMCAST CORPORATION                         EMPLOYEE


By:______________________                   _______________________
                                            STEPHEN B. BURKE


Title_____________________




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