NEWS RELEASE

Tony Kornheiser Returns to XM Satellite Radio

1/10/2008

WASHINGTON, Jan. 10 /PRNewswire-FirstCall/ -- will return to XM Satellite Radio on January 21 on the talk radio channel XM Sports Nation.

(Logo: http://www.newscom.com/cgi-bin/prnh/20070313/XMLOGO )

"" will air nationwide on XM Sports Nation (XM Channel 144) weekdays from 8:15 a.m. to 10 a.m. ET.

Kornheiser is returning to the radio airwaves after a seven-month hiatus to focus on his role as analyst for ESPN's "."

"The Tony Kornheiser Show" originates from Washington, D.C. on the local radio station 3WT AM/FM. The show is carried nationwide on XM. XM is the only national broadcaster to air the program. January 21 will mark Kornheiser's first day back on the air at both XM and 3WT.

Tony Kornheiser has hosted local and national radio programs for 14 years. is the co-host of ESPN's "," and is currently in his second season as an analyst on "Monday Night Football."

"I'm thrilled to be back on the radio," Kornheiser said. "The national audience that watches 'PTI' and 'Monday Night Football' and reads the columns in the Post can now listen to our show every weekday morning on XM Sports Nation."

"Tony's back, and we're proud to be bringing him to millions of listeners across the country," said Kevin Straley, XM

1 senior vice president of news, sports, and talk programming. "The show is an important part of the XM Sports Nation line-up. Fans have been asking us for months when Tony was going to be back behind the microphone."

Kornheiser's show will return to XM Sports Nation on the same day that the channel begins carrying Dan Patrick's new radio show from 10 am to 12 noon ET.

XM is the sports leader in satellite radio with more than 5,000 live sporting events annually. XM is the official satellite radio network for Major League , the six major college sports conferences in the Bowl Championship Series (BCS), the National Hockey League, the PGA TOUR, and the IndyCar Series. XM also offers the most sports talk on the radio with the 24-hour channels XM Sports Nation, MLB Home Plate, NHL Home Ice, ESPN Radio, ESPNews, and Fox .

About XM

XM (NASDAQ: XMSR) is America's number one satellite radio company with more than 8.5 million subscribers. Broadcasting live daily from studios in Washington, DC, City, , the Country Music Hall of Fame in 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. 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 -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 3-1-07. Copies of the filing are available upon request from XM Radio's Investor Relations Department. Programming is subject to change.

Photo: NewsCom: http://www.newscom.com/cgi-bin/prnh/20070313/XMLOGO AP Archive: http://photoarchive.ap.org/ PRN Photo Desk, [email protected]

SOURCE: XM Satellite Radio

2 CONTACT: David Butler of XM Satellite Radio, +1-202-380-4317, [email protected]

Web site: http://www.xmradio.com/

3