Comcast Corporation Names Diane Dietz Senior Director of Public Affairs and Vice President, The Comcast Foundation

Philadelphia, PA.

Comcast Corporation (Nasdaq: CMCSA, CMCSK), the country's leading provider of cable, entertainment and communications products and services, announced today that Diane Dietz has been appointed Senior Director of Public Affairs and Vice President of The Comcast Foundation.

(Photo: http://www.newscom.com/cgi-bin/prnh/20050706/PHW010 )

In her new position, Dietz will direct the company's public affairs
activities, including its national community investment and outreach
initiatives. She also will oversee The Comcast Foundation, which provides
financial support for organizations and programs that work to strengthen the
communities Comcast serves. She will report to Joseph W. Waz, Jr., Vice
President of External Affairs, and begin her new role in mid-July.

"One of Comcast's guiding principles is to enrich the communities in which
our customers and employees live and work, and I'm thrilled that Diane will be
leading our efforts to fulfill that commitment," said David L. Cohen,
Executive Vice President of Comcast. "Diane's nine years of experience in
managing Comcast's community investment and communications initiatives in the
Midwest will be a tremendous asset as we continue to build Comcast's
involvement in the communities we serve."

"Diane has been an integral part of the Comcast family and has earned the
respect of colleagues throughout the organization as a strong strategist,
practitioner and mentor," said Waz. "Having had the chance to work with her
for many years, I am pleased that she will be helping Comcast further develop
our community investment initiatives in her new role."

Dietz joined Comcast in 1996. In her current capacity as the Vice
President of Corporate Affairs for Comcast's Midwest Division, Diane is
responsible for the development and management of internal and external
communications initiatives as well as the community investments efforts.
Prior to joining Comcast, she served as Vice President of Corporate and Legal
Affairs for Continental Cablevision's Midwest Region and as an attorney at
several law firms in Michigan. She holds a Juris Doctor from Thomas M. Cooley
Law School in Lansing, Mich., and a Bachelor's degree from the University of
Michigan. She will relocate to Philadelphia from Bloomfield Hills, Mich.

The Comcast Foundation was established by Comcast in 1999 and is the
company's chief source of charitable support to qualified non-profit
organizations. Since its inception, the Foundation has distributed more than
$18 million in grants to non-profit organizations in Comcast communities
nationwide. Comcast supports numerous local and national organizations such
as The United Way, City Year and The Partnership for a Drug-Free America, and
uses its resources to bring visibility to important issues. In addition,
Comcast Cares Day, the company's annual day of service, brings together 30,000
Comcast employees and their families to volunteer on a Saturday in October in
their local communities.

About Comcast

Comcast Corporation (Nasdaq: CMCSA, CMCSK) (http://www.comcast.com) is the
nation's leading provider of cable, entertainment and communications products
and services. With 21.5 million cable customers, 7.4 million high-speed
Internet customers, and 1.2 million voice customers, Comcast is principally
involved in the development, management and operation of broadband cable
networks and in the delivery of programming content.

The Company's content networks and investments include E! Entertainment
Television, Style Network, The Golf Channel, Outdoor Life Network, G4, AZN
Television, PBS KIDS Sprout, TV One and four regional Comcast SportsNets. The
Company also has a majority ownership in Comcast-Spectacor, whose major
holdings include the Philadelphia Flyers NHL hockey team, the Philadelphia
76ers NBA basketball team and two large multipurpose arenas in Philadelphia.
Comcast Class A common stock and Class A Special common stock trade on The
NASDAQ Stock Market under the symbols CMCSA and CMCSK, respectively.