COMCAST CORPORATION 2003 STOCK OPTION PLAN (AS AMENDED AND RESTATED EFFECTIVE DECEMBER 12, 2007)

Exhibit 10.3

COMCAST CORPORATION

2003 STOCK OPTION PLAN

(AS AMENDED AND RESTATED EFFECTIVE DECEMBER 12, 2007)

(a) Background . COMCAST CORPORATION, a Pennsylvania corporation hereby amends and restates the Comcast Corporation 2003 Stock Option Plan, (the “Plan”), effective December 12, 2007.

(b) Purpose . The purpose of the Plan is to assist the Sponsor and its Affiliates in retaining valued employees, officers and directors by offering them a greater stake in the Sponsor’s success and a closer identity with it, and to aid in attracting individuals whose services would be helpful to the Sponsor and would contribute to its success.

(a) “ Affiliate ” means, with respect to any Person, any other Person that, directly or indirectly, is in control of, is controlled by, or is under common control with, such Person. For purposes of this definition, the term “control,” including its correlative terms “controlled by” and “under common control with,” mean, with respect to any Person, the possession, directly or indirectly, of the power to direct or cause the direction of the management and policies of such Person, whether through the ownership of voting securities, by contract or otherwise.

(b) “ AT&T Broadband Transaction ” means the acquisition of AT&T Broadband Corp. (now known as Comcast Cable Communications Holdings, Inc.) by the Sponsor.

(c) “ Board ” means the board of directors of the Sponsor.

(d) “ Cash Right ” means any right to receive cash in lieu of Shares granted under the Plan and described in Paragraph 3(a)(iii).

(e) “ Cause ” means (i) fraud; (ii) misappropriation; (iii) embezzlement; (iv) gross negligence in the performance of duties; (v) self-dealing; (vi) dishonesty; (vii) misrepresentation; (viii) conviction of a crime of a felony; (ix) material violation of any Company policy; (x) material violation of the Company’s Code of Ethics and Business Conduct or, (xi) in the case of an employee of a Company who is a party to an employment agreement with a Company, material breach of such agreement; provided that as to items (ix), (x) and (xi), if capable of being cured, such event or condition remains uncured following 30 days written notice thereof.

(f) “ Change of Control ” means any transaction or series of transactions as a result of which any Person who was a Third Party immediately before such transaction or series of transactions owns then-outstanding securities of the Sponsor such that such Person has the ability to direct the management of the Sponsor, as determined by the Board in its discretion. The Board may also determine that a Change of Control shall occur upon the completion of one or more proposed transactions. The Board’s determination shall be final and binding.

(g) “ Code ” means the Internal Revenue Code of 1986, as amended.

(h) “ Comcast Plan ” means any restricted stock, stock bonus, stock option or other compensation plan, program or arrangement established or maintained by the Sponsor or an Affiliate of the Sponsor, including, but not limited to this Plan, the Comcast Corporation 2002 Stock Option Plan, the Comcast Corporation 2002 Restricted Stock Plan, the Comcast Corporation 1987 Stock Option Plan and the AT&T Broadband Corp. Adjustment Plan.

(i) “ Committee ” means the committee described in Paragraph 5, provided that for purposes of Paragraph 7:

(i) all references to the Committee shall be treated as references to the Board with respect to any Option granted to or held by a Non-Employee Director; and

(ii) all references to the Committee shall be treated as references to the Committee’s delegate with respect to any Option granted within the scope of the delegate’s authority pursuant to Paragraph 5(b).

(j) “ Common Stock ” means the Sponsor’s Class A Common Stock, par value, $.01.

(k) “ Company ” means the Sponsor and the Subsidiary Companies.

(l) “ Date of Grant ” means the date as of which an Option is granted.

(m) “ Disability ” means a disability within the meaning of section 22(e)(3) of the Code.

(n) “ Fair Market Value .” If Shares are listed on a stock exchange, Fair Market Value shall be determined based on the last reported sale price of a Share on the principal exchange on which Shares are listed on the date of determination, or if such date is not a trading day, the next trading date. If Shares are not so listed, but trades of Shares are reported on the Nasdaq National Market, Fair Market Value shall be determined based on the last quoted sale price of a Share on the Nasdaq National Market on the date of determination, or if such date is not a trading day, the next trading date. If Shares are not so listed nor trades of Shares so reported, Fair Market Value shall be determined by the Board or the Committee in good faith.

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(o) “ Family Member ” has the meaning given to such term in General Instructions A.1(a)(5) to Form S-8 under the Securities Act of 1933, as amended, and any successor thereto.

(p) “ Incentive Stock Option ” means an Option granted under the Plan, designated by the Committee at the time of such grant as an Incentive Stock Option within the meaning of section 422 of the Code and containing the terms specified herein for Incentive Stock Options; provided, however , that to the extent an Option granted under the Plan and designated by the Committee at the time of grant as an Incentive Stock Option fails to satisfy the requirements for an incentive stock option under section 422 of the Code for any reason, such Option shall be treated as a Non-Qualified Option.

(q) “ Non-Employee Director ” means an individual who is a member of the Board, and who is not an employee of a Company, including an individual who is a member of the Board and who previously was, but at the time of reference is not, an employee of a Company.

(r) “ Non-Qualified Option ” means:

(i) an Option granted under the Plan, designated by the Committee at the time of such grant as a Non-Qualified Option and containing the terms specified herein for Non-Qualified Options; and

(ii) an Option granted under the Plan and designated by the Committee at the time of grant as an Incentive Stock Option, to the extent such Option fails to satisfy the requirements for an incentive stock option under section 422 of the Code for any reason.

(s) “ Officer ” means an officer of the Sponsor (as defined in section 16 of the 1934 Act).

(t) “ Option ” means any stock option granted under the Plan and described in Paragraph 3(a)(i) or Paragraph 3(a)(ii).

(u) “ Optionee ” means a person to whom an Option has been granted under the Plan, which Option has not been exercised in full and has not expired or terminated.

(v) “ Other Available Shares ” means, as of any date, the sum of:

(i) the total number of Shares owned by an Optionee that were not acquired by such Optionee pursuant to a Comcast Plan or otherwise in connection with the performance of services to the Sponsor or an Affiliate; plus

(ii) the excess, if any of:

(A) the total number of Shares owned by an Optionee other than the Shares described in Paragraph 2(v)(i); over

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(B) the sum of:

(1) the number of such Shares owned by such Optionee for less than six months; plus

(2) the number of such Shares owned by such Optionee that has, within the preceding six months, been the subject of a withholding certification pursuant to Paragraph 15(b) or any similar withholding certification under any other Comcast Plan; plus

(3) the number of such Shares owned by such Optionee that has, within the preceding six months, been received in exchange for Shares surrendered as payment, in full or in part, or as to which ownership was attested to as payment, in full or in part, of the exercise price for an option to purchase any securities of the Sponsor or an Affiliate of the Sponsor, under any Comcast Plan, but only to the extent of the number of Shares surrendered or attested to; plus

(4) the number of such Shares owned by such Optionee as to which evidence of ownership has, within the preceding six months, been provided to the Sponsor in connection with the crediting of “Deferred Stock Units” to such Optionee’s Account under the Comcast Corporation 2002 Deferred Stock Option Plan (as in effect from time to time).

For purposes of this Paragraph 2(v), a Share that is subject to a deferral election pursuant to another Comcast Plan shall not be treated as owned by an Optionee until all conditions to the delivery of such Share have lapsed. The number of Other Available Shares shall be determined separately for Common Stock and for Special Common Stock. For purposes of determining the number of Other Available Shares, the term “Shares” shall also include the securities held by a Participant immediately before the consummation of the AT&T Broadband Transaction that became Common Stock or Special Common Stock as a result of the AT&T Broadband Transaction.

(w) “ Outside Director ” means a member of the Board who is an “outside director” within the meaning of section 162(m)(4)(C) of the Code and applicable Treasury Regulations issued thereunder.

(x) “ Person ” means an individual, a corporation, a partnership, an association, a trust or any other entity or organization.

(y) “ Plan ” means the Comcast Corporation 2002 Stock Option Plan.

(z) “ Share ” or “ Shares .”

(i) Except as provided in this Paragraph 2(z), a share or shares Common Stock;

(ii) For purposes of Paragraphs 2(v), 7(d) and Paragraph 15, the term “Share” or “Shares” also means a share or shares of Special Common Stock.

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(iii) The term “Share” or “Shares” also means such other securities issued by the Sponsor as may be the subject of an adjustment under Paragraph 10, or for purposes of Paragraph 2(v) and Paragraph 15, as may have been the subject of a similar adjustment under similar provisions of a Comcast Plan as now in effect or as may have been in effect before the AT&T Broadband Transaction.

(aa) “ Special Common Stock ” means the Sponsor’s Class A Special Common Stock, par value $0.01.

(bb) “ Sponsor ” means Comcast Corporation, a Pennsylvania corporation, as successor to Comcast Holdings Corporation (formerly known as Comcast Corporation), including any successor thereto by merger, consolidation, acquisition of all or substantially all the assets thereof, or otherwise.

(cc) “ Subsidiary Companies ” means all business entities that, at the time in question, are subsidiaries of the Sponsor within the meaning of section 424(f) of the Code.

(dd) “ Ten Percent Shareholder ” means a person who on the Date of Grant owns, either directly or within the meaning of the attribution rules contained in section 424(d) of the Code, stock possessing more than 10% of the total combined voting power of all classes of stock of his employer corporation or of its parent or subsidiary corporations, as defined respectively in sections 424(e) and (f) of the Code, provided that the employer corporation is a Company.

(ee) “ Terminating Event ” means any of the following events:

(i) the liquidation of the Sponsor; or

(ii) a Change of Control.

(ff) “ Third Party ” means any Person other than a Company, together with such Person’s Affiliates, provided that the term “Third Party” shall not include the Sponsor or an Affiliate of the Sponsor.

(gg) “ 1933 Act ” means the Securities Act of 1933, as amended.

(hh) “ 1934 Act ” means the Securities Exchange Act of 1934, as amended.

(a) Types of Options and Other Rights Available for Grant. Rights that may be granted under the Plan are:

(i) Incentive Stock Options, which give an Optionee who is an employee of a Company the right for a specified time period to purchase a specified number of Shares for a price not less than the Fair Market Value on the Date of Grant.

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(ii) Non-Qualified Options, which give the Optionee the right for a specified time period to purchase a specified number of Shares for a price determined by the Committee; and

(iii) Cash Rights, which give an Optionee the right for a specified time period, and subject to such conditions, if any, as shall be determined by the Committee and stated in the option document, to receive a cash payment of such amount per Share as shall be determined by the Committee and stated in the option document, in lieu of exercising a Non-Qualified Option.

(b) Limit on Grant of Options . The maximum number of Shares for which Options may be granted to any single individual in any calendar year, adjusted as provided in Paragraph 10, shall be 10,000,000 Shares.

Subject to adjustment as provided in Paragraph 10, not more than 105 million Shares in the aggregate (including Shares granted pursuant to the Plan as in effect immediately before the closing of the AT&T Broadband Transaction, and as adjusted to reflect the three-for-two stock split in the form of a 50% stock dividend payable on February 21, 2007 to shareholders of record on February 14, 2007) may be issued pursuant to the Plan upon exercise of Options. Shares delivered pursuant to the exercise of an Option may, at the Sponsor’s option, be either treasury Shares or Shares originally issued for such purpose. If (a) an Option covering Shares terminates or expires without having been exercised in full, (b) the Sponsor withholds Shares to satisfy its minimum tax withholding requirements as provided in Paragraph 15(b) and Paragraph 15(c) or (c) effective February 28, 2007, an Option covering Shares is exercised pursuant to the cashless exercise provisions of Paragraph 7(d)(iv), other Options may be granted covering the Shares as to which the Option terminated or expired, covering the Shares so withheld to satisfy the Sponsor’s minimum tax withholding requirements or covering the Shares that were subject to such Option but not delivered because of the application of such cashless exercise provisions, as applicable.

(a) Committee . The Plan shall be administered by the Compensation Committee of the Board or any other committee or subcommittee designated by the Board, provided that the committee administering the Plan is composed of two or more non-employee members of the Board, each of whom is an Outside Director.

(b) Delegation of Authority .

(i) Named Executive Officers and Section 16(b) Officers . All authority with respect to the grant, amendment, interpretation and administration of Options with respect to any employee or officer of a Company who is either (x) a Named Executive Officer ( i.e. , an officer who is required to be listed in the Company’s Proxy Statement Compensation Table) or (y) is subject to the short-swing profit recapture rules of section 16(b) of the 1934 Act, is reserved to the Committee.

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(ii) Senior Officers and Highly Compensated Employees . The Committee may delegate to a committee consisting of the Chairman of the Committee and one or more officers of the Company designated by the Committee, discretion under the Plan to grant, amend, interpret and administer Options with respect to any employee or officer of a Company who (x) holds a position with Comcast Corporation of Senior Vice President or a position of higher rank than Senior Vice President or (y) has a base salary of $500,000 or more, provided that an Option granted pursuant to this delegated authority may not have an exercise price per Share that is less than the Fair Market Value on the Date of Grant.

(iii) Other Employees . The Committee may delegate to an officer of the Company, or a committee of two or more officers of the Company, discretion under the Plan to grant, amend, interpret and administer Options with respect to any employee or officer of a Company other than an employee or officer described in Paragraph 5(b)(i) or Paragraph 5(b)(ii), provided that an Option granted pursuant to this delegated authority may not have an exercise price per Share that is less than the Fair Market Value on the Date of Grant.

(iv) Termination of Delegation of Authority . Delegation of authority as provided under this Paragraph 5(b) shall continue in effect until the earliest of:

(x) such time as the Committee shall, in its discretion, revoke such delegation of authority;

(y) in the case of delegation under Paragraph 5(b)(ii), the delegate shall cease to serve as Chairman of the Committee or serve as an employee of the Company for any reason, as the case may be and in the case of delegation under Paragraph 5(b)(iii), the delegate shall cease to serve as an employee of the Company for any reason; or

(z) the delegate shall notify the Committee that he declines to continue to exercise such authority.

(c) Meetings . The Committee shall hold meetings at such times and places as it may determine. Acts approved at a meeting by a majority of the members of the Committee or acts approved by the unanimous consent of the members of the Committee shall be the valid acts of the Committee.

(d) Exculpation . No member of the Committee shall be personally liable for monetary damages for any action taken or any failure to take any action in connection with the administration of the Plan or the granting of Options thereunder unless (i) the member of the Committee has breached or failed to perform the duties of his office, and (ii) the breach or failure to perform constitutes self-dealing, willful misconduct or recklessness; provided, however , that the provisions of this Paragraph 5(d) shall not apply to the responsibility or liability of a member of the Committee pursuant to any criminal statute.

(e) Indemnification . Service on the Committee shall constitute service as a member of the Board. Each member of the Committee shall be entitled without further act on his part to indemnity from the Sponsor to the fullest extent provided by applicable law and the Sponsor’s By-laws in connection with or arising out of any actions, suit or proceeding with

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respect to the administration of the Plan or the granting of Options thereunder in which he may be involved by reasons of his being or having been a member of the Committee, whether or not he continues to be such member of the Committee at the time of the action, suit or proceeding.

(a) Eligible individuals to whom Options may be granted shall be employees, officers or directors of a Company who are selected by the Committee for the grant of Options. Eligible individuals to whom Cash Rights may be granted shall be individuals who are employees of a Company on the Date of Grant other than Officers. The terms and conditions of Options granted to individuals other than Non-Employee Directors shall be determined by the Committee, subject to Paragraph 7. The terms and conditions of Cash Rights shall be determined by the Committee, subject to Paragraph 7. The terms and conditions of Options granted to Non-Employee Directors shall be determined b