Disclaimer

The SEC Filings on this page are provided by EDGAR (www.sec.gov), the Electronic Data Gathering, Analysis, and Retrieval System of the U.S. Securities and Exchange Commission (SEC). EDGAR performs automated collection, validation, indexing, acceptance, and forwarding of submissions by companies and others who are required by law to file forms with the SEC. The information here is provided for your convenience only. Comcast has no control over the information provided by EDGAR and cannot guarantee the sequence, accuracy, or completeness of any information or data displayed through EDGAR. Accordingly, Comcast does not accept any responsibility for the content or use of any information obtained through EDGAR.

Consult Your Tax Advisor

[X]

The information in this document represents our understanding of federal income tax laws and regulations, but does not constitute personal tax advice based on your specific situation. It does not purport to be complete or to describe the consequences that may apply to you given your particular taxes. You should consult your own tax advisor regarding the applicability of any state, local and foreign tax laws.

Comcast Chairman and CEO Brian L. Roberts Demonstrates 1Gbps Broadband Connection

06/16/11

Comcast Chairman and CEO Brian L. Roberts Demonstrates 1Gbps Broadband Connection 11.5 KB

PHILADELPHIA & CHICAGO--(BUSINESS WIRE)-- Today at the 2011 NCTA show in Chicago, Comcast Corporation (Nasdaq: CMCSA, CMCSK) Chairman and CEO Brian L. Roberts showed the first 1Gbps connection over a live broadband network serving customers by downloading all 23 episodes of Season 5 of "30 Rock" — close to nine hours of content — in about 90 seconds.

"This demonstration of extreme 1 Gbps speed on our network is another leap forward in innovation, and we're excited to work with developers to see what amazing new applications could take advantage of the next evolution of broadband," Mr. Roberts said.

To demonstrate the future of broadband, engineers from Comcast Innovation Labs bonded 32 channels on the company's DOCSIS network in Chicago to deliver one billion bits per second over 11 miles of fiber and coax to the NCTA show floor at McCormick Place Convention Center.

A video replay of Mr. Roberts' presentation will be available on http://2011.thecableshow.com/live and on http://blog.comcast.com/.

About Comcast Corporation

Comcast Corporation (Nasdaq: CMCSA, CMCSK) (www.comcast.com) is one of the nation's leading providers of entertainment, information and communications products and services. Comcast is principally involved in the operation of cable systems through Comcast Cable and in the development, production and distribution of entertainment, news, sports and other content for global audiences through NBCUniversal. Comcast Cable is one of the nation's largest video, high-speed Internet and phone providers to residential and business customers. Comcast is the majority owner and manager of NBCUniversal, which owns and operates entertainment and news cable networks, the NBC and Telemundo broadcast networks, local television station groups, television production operations, a major motion picture company and theme parks.