July 10, 2008 Press Release - POTUS '08 Convention Coverage

PRESS RELEASE from XM Satellite Radio

XM Radio's 'POTUS '08' Channel to Cover Democratic, Republican Conventions 24 Hours a Day Without Commercials

WASHINGTON, July 10 /PRNewswire-FirstCall/ -- XM Satellite Radio's presidential election channel POTUS '08 will air 24-hour news coverage of the Republican and Democratic conventions without commercial interruption. As a public service, the POTUS '08 channel is available for free on all XM radios.

The POTUS '08 channel will go far beyond the traditional media's approach to the conventions. It will air complete, gavel-to-gavel coverage of the events, plus round-the-clock news and interviews with party insiders, reporters, pundits, protestors, and bloggers. During the overnight hours, the channel will recap the convention highlights of the previous day. POTUS '08 anchors will report from a skybox overlooking the convention floor at both events, with additional reporters inside and outside the venues.

"POTUS '08 is the first and only radio channel dedicated to a presidential election 24 hours a day," said Kevin Straley, XM senior vice president of news, sports, and talk programming. "The channel has been reporting on the presidential campaign nonstop for the last ten months, and we're bringing that same, intense level of coverage to the conventions. While other media outlets are only carrying the primetime speeches, we will air everything that's happening on the podium throughout the day. We'll be talking to everybody from the insiders working behind the scenes to protestors outside the arenas. We're live from the opening gavel to the final speeches by Barack Obama and John McCain. And there will be no commercial interruptions."

POTUS '08 anchors Joe Mathieu, Rebecca Roberts, and Scott Walterman will report from the Democratic convention in Denver August 25-28. Anchors Tim Farley, Mathieu, and Walterman will be at the Republican convention in St. Paul September 1-4. During each convention, anchor Adrienne Mitchell will report on the opposing party from Washington, D.C.

In advance of the conventions, POTUS '08 is airing a weekly interview segment with the convention organizers in St. Paul and Denver as they enter the final stages of preparation. Representatives of the Republican National Committee and Democratic National Committee are also appearing on POTUS '08 every weekday morning to talk about the campaign.

POTUS '08 is XM channel 130. The term POTUS -- pronounced "POH-tus" -- is an abbreviation used by White House officials for President of the United States. The nonpartisan, commercial-free channel is heard nationwide on XM radios for the car, home, and portable use. POTUS '08 was recently named one of the ten most important voices of this election year by Best Life magazine.

More information about the POTUS '08 channel on XM is available online at http://www.xmradio.com/potus.

About XM

XM (Nasdaq: XMSR) is America's number one satellite radio company with more than 9.3 million subscribers. Broadcasting live daily from studios in Washington, DC, New York City, Chicago, Nashville, Toronto and Montreal, XM's 2008 lineup includes more than 170 digital channels of choice from coast to coast: commercial-free music, premier sports, news, talk radio, comedy, children's and entertainment programming; and the most advanced traffic and weather information.

XM, the leader in satellite-delivered entertainment and data services for the automobile market through partnerships with General Motors, Honda, Hyundai, Nissan, Porsche, Ferrari, Subaru, Suzuki, and Toyota, is available in 140 different vehicle models for 2008. XM's industry-leading products are available at consumer electronics retailers nationwide. XM programming is also available through XM Radio Online, as downloads of original XM shows via podcasts from XM's Web site or the Apple's iTunes Store, and as streams of commercial-free XM music channels to AT&T and Alltel wireless customers through XM Radio Mobile. For more information about XM hardware, programming and partnerships, please visit http://www.xmradio.com/.

Factors that could cause actual results to differ materially from those in the forward-looking statements in this press release include demand for XM Satellite Radio's service, the Company's dependence on technology and third party vendors, its potential need for additional financing, as well as other risks described in XM Satellite Radio Holdings Inc.'s Form 10-K filed with the Securities and Exchange Commission on 2-28-08. Copies of the filing are available upon request from XM Radio's Investor Relations Department. Programming is subject to change.