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NEWS RELEASE

" AND “MARKETPLACE" TO JOIN XM PUBLIC RADIO PROGRAMMING LINEUP

2/15/2007

POPULAR SHOWS AVAILABLE ON XM BEGINNING MARCH 3

Washington, D.C., February 15, 2007 – XM, the nation’s leading satellite radio service with more than 7.6 million subscribers, today announced plans to add two of American Public Media’s award-winning programs, “A Prairie Home Companion" and “Marketplace," to the XM Public Radio (XMPR) lineup.

Hosted and produced by bestselling author and National Humanities Award-winner , “A Prairie Home Companion," now in its 33rd year of production, features comedy sketches, music, and Keillor's signature monologue, “The News from ." Beginning March 3, “A Prairie Home Companion" will air live every Saturday from 6 to 8 p.m. ET on XMPR (XM 133), with additional encores airing during the week. “A Prairie Home Companion's" season consists of 32 live shows broadcast from St. Paul, New York and other locations across the country.

“Now XM listeners can enjoy even more popular public radio programming," said Eric Logan, executive vice president of programming for XM. “‘A Prairie Home Companion’ and the portfolio of ‘Marketplace’ programs complement the high-quality content already available on XM Public Radio, including the award-winning ‘Bob Edwards Show.’"

The XMPR schedule also will include “Marketplace," an entertaining high-energy program on business and finance. One of the most popular series in the distinguished public radio news line-up, “Marketplace" will begin airing

1 weekdays, at 7 p.m. ET beginning Monday, March 5 on XMPR.

Hosted by , regular program features include business headlines; coverage from “Marketplace" bureaus in Los Angeles, Washington, DC, New York, Shanghai, and London; commentaries; closing financial indices; topical coverage of financial trends; and the business aspects of politics, health, sports, the arts, education, and travel.

“Marketplace Money," an hour-long weekend program focusing on personal finance, and “Marketplace Morning Report" also will be added to the XMPR schedule. “Marketplace Money" will air Saturdays at 9 p.m. ET on XMPR starting March 3; “Marketplace Morning Report" will air weekdays beginning March 5.

In addition to “A Prairie Home Companion" and the “Marketplace" portfolio, American Public Media programs “The Story," “," “Sound Opinions" and “ Weekend" will join the XMPR lineup this spring. American Public Media’s “Air Talk," “," “Speaking of Faith," “," “American RadioWorks," “The Writer’s Almanac" and “Composers Datebook" are currently part of the XMPR programming schedule.

Complete programming information, including show descriptions, air dates and times, will be available soon at http://www.xmradio.com.

*** About XM XM (NASDAQ: XMSR) is America's number one satellite radio company with more than 7.6 million subscribers. Broadcasting live daily from studios in Washington, DC, , Chicago, the Hall of Fame in Nashville, Toronto and Montreal, XM's 2007 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, Subaru, Suzuki and Toyota is available in 140 different vehicle models for 2007. 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.

About American Public Media American Public Media™ is the nation's second-largest producer of public radio programs, reaching 14.3 million listeners nationwide each week. National programs include A Prairie Home Companion®, Weekend America®, Performance Today®, Marketplace®, Marketplace Money®, ®, Speaking of Faith® , and special

2 reports produced by its national documentary unit, American RadioWorks®. American Public Media is the name under which Public Radio® | American Public Media does national program production and distribution. , along with its sister company Southern California Public Radio, belongs to a larger family of companies within American Public Media Group, a national nonprofit organization whose purpose is to develop resources, services and systems to support public media for public service. A complete list of stations, programs and additional services can be obtained at www.americanpublicmedia.org.

Source: Data are copyright Arbitron, Inc. Arbitron data are estimates only. Fall 2005/Spring 2006 average

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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 3-9-06. Copies of the filing are available upon request from XM Radio's Investor Relations Department.

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