SIRIUS XM Expands Book Radio Channel

24/7 channel includes new live, call-in show with authors, wide variety of
audio books, bestsellers at drive time, "Harlequin Romance Radio," slam poetry
and more

Veteran broadcaster Pia Lindstrom's weekly show to feature top guests from
publishing as well as film, music and the arts

NEW YORK, April 13 /PRNewswire-FirstCall/ -- SIRIUS XM Radio (Nasdaq: SIRI)
announced today that it is expanding its Book Radio channel -- SIRIUS channel
117 and XM channel 163 -- exploring all sides of the book world and taking
listeners behind-the-scenes with a wide and varied programming lineup
including author interviews, daily broadcasts of audio books including "drive
time bestsellers," radio theater and more.

(Logo: http://www.newscom.com/cgi-bin/prnh/20080819/NYTU044LOGO )

Today SIRIUS XM will launch PiaLindstrom Presents, an exclusive weekly
interview show hosted by the veteran movie and theater critic, giving
listeners exposure to the insiders of the publishing world. PiaLindstrom
Presents will air Mondays at 11:00 pm ET and replay Wednesdays at 3:00 pm ET
and Sundays at 7:30 pm ET on Book Radio. Every week Lindstrom will talk with
guests from the world of books as well as film directors, producers, literary
insiders and others. For her first show Lindstrom will sit down with her
sister, the renowned actress Isabella Rossellini, to discuss her new book
Green Porno, based on her Sundance Channel web series. Future guests include
Morgan Entrekin, President and Publisher of Grove/Atlantic Books.

Book Radio will launch its first live call-in show, Cover to Cover Live, on
April 14 at 3:00 pm ET. Hosts Maggie Linton and Kim Alexander will connect
listeners with the authors they love. Coverto Cover Live will air weekly,
every Tuesday from 3:00 - 4:00 pm ET. Upcoming guests will include bestselling
author David Baldacci and financial experts Jonathan Pond and Harrine Freeman.

"Pia Lindstrom Presents is where you'll hear from literary lions, movie
critics, publishers, lyricists, authors, slam poets and friends -- the
fascinating people who put words on paper," said Pia Lindstrom. "I am very
excited to bring my love of books and intimate conversations with the people
who create them, to SIRIUS XM's millions of listeners."

"SIRIUS XM's Book Radio is perfect for our subscribers, particularly listeners
in their cars on commutes and road trips, where they can enjoy great stories
and also hear the stories behind the stories," said Scott Greenstein,
President and Chief Content Officer, SIRIUS XM Radio. "We've assembled a team
of people with the highest passion for the literary world. With the launch of
PiaLindstrom Presents and Cover to Cover Live, Book Radio truly becomes the
radio leader in the world of books."

Lindstrom worked in television journalism for three decades in California and
New York. She received two Emmy(R) Awards and the New York Associated Press
Broadcasters Award for news reporting. She worked at WCBS-TV as a News
Correspondent and for 23 years at WNBC-TV as a News Reporter, Co-Anchor and
Arts Editor.

Maggie Linton and Kim Alexander have a combined total of over 60 years of
broadcasting experience. Linton is the Program Director of Book Radio.
Alexander is the host of Fiction Nation, a weekly conversation with writers,
actors, editors and librarians, and Thisis Audible, a program that explores
the spoken word in all its forms through conversations with authors, voice
talents, reviews, and interviews as well as a weekly countdown of the hottest
titles.

Book Radio's deep audio library covers the spectrum--fiction; non-fiction;
biographies; self-help; comedy; young adult; literary fiction; thrillers;
short stories; fantasy; mystery; suspense; and more, including
HarlequinRomance Radio's sultry plots; original and inventive slam poetry and
the classic works and characters of Jane Austen, Charles Dickens and Tolstoy.

Upcoming books and authors to be featured on Book Radio this month include The
Terror, the story of a doomed team of explorers in the Antarctic by New York
Times bestselling author Dan Simmons; and New York Times bestselling author
David Baldacci is on hand to introduce his entire Camel Club series, beginning
with The Camel Club, and his latest novel First Family. In honor of Earth Week
(April 21 - 25) Washington Post garden editor Adrian Higgins will appear to
discuss environmentally safe gardening, and NASA climate scientist Gavin
Schmidt and photographer Joshua Wolfe will discuss how global warming is
affecting our planet and their latest book Climate Change. Other authors
featured on Book Radio include Amy Tan; Jonathan Kellerman; Carl Hiaasen;
Jhumpa Lahiri; Philip K. Dick; Steve Berry; Bill Bryson; and Heather Graham.

For the complete Book Radio programming lineup and the complete list of books
and authors currently airing on the channel please visit www.sirius.com and
www.xmradio.com.

About SIRIUS XM Radio
SIRIUS XM Radio is America's satellite radio company delivering
commercial-free music channels, premier sports, news, talk, entertainment,
traffic and weather, to more than 19 million subscribers as of December 31,
2008.

SIRIUS XM Radio has content relationships with an array of personalities and
artists, including Howard Stern, Martha Stewart, Oprah Winfrey, Jimmy Buffett,
Jamie Foxx, Barbara Walters, Opie & Anthony, Bubba the Love Sponge(R), The
Grateful Dead, Willie Nelson, Bob Dylan, Tom Petty, and Bob Edwards. SIRIUS XM
Radio is the leader in sports programming as the Official Satellite Radio
Partner of the NFL, Major League Baseball(R), NASCAR(R), NBA, NHL(R), and PGA
TOUR(R), and broadcasts major college sports.

SIRIUS XM Radio has arrangements with every major automaker. SIRIUS XM Radio
products are available at shop.sirius.com and shop.xmradio.com, and at retail
locations nationwide, including Best Buy, RadioShack, Target, Sam's Club, and
Wal-Mart.

SIRIUS XM Radio also offers SIRIUS Backseat TV, the first ever live in-vehicle
rear seat entertainment featuring Nickelodeon, Disney Channel and Cartoon
Network; XM NavTraffic(R) service for GPS navigation systems delivers
real-time traffic information, including accidents and road construction, for
more than 80 North American markets.

This communication contains "forward-looking statements" within the meaning of
the Private Securities Litigation Reform Act of 1995. Such statements
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combination transaction involving SIRIUS and XM, including potential synergies
and cost savings and the timing thereof, future financial and operating
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materially from the results anticipated in these forward-looking statements.
The following factors, among others, could cause actual results to differ
materially from the anticipated results or other expectations expressed in the
forward-looking statement: our substantial indebtedness; the businesses of
SIRIUS and XM may not be combined successfully, or such combination may take
longer, be more difficult, time-consuming or costly to accomplish than
expected; the useful life of our satellites; our dependence upon automakers
and other third parties; our competitive position versus other forms of audio
and video entertainment; and general economic conditions. Additional factors
that could cause SIRIUS' and XM's results to differ materially from those
described in the forward-looking statements can be found in SIRIUS' Annual
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Report on Form 10-K for the year ended December 31, 2008, which are filed with
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P-SIRI

Contact for SIRIUS XM Radio:

Hillary Schupf
SIRIUS XM Radio
212.901.6739
Hillary.Schupf@siriusxm.com

SOURCE SIRIUS XM Radio

Hillary Schupf, SIRIUS XM Radio, +1-212-901-6739, Hillary.Schupf@siriusxm.com