EXHIBIT 99.14 CONSENT OF A PERSON NAMED AS ABOUT TO BECOME A DIRECTOR Pursuant to Rule 438 promulgated under the Securities Act of 1933, I, Ralph J. Roberts, hereby consent to be named as a person about to become a director of AT&T Comcast Corporation in the registration statement on Form S-4 of AT&T Comcast Corporation dated February 11, 2002 and any amendments thereto. /s/ Ralph J. Roberts ----------------------------- Ralph J. Roberts Date: February 11, 2002