NASCAR superstar drivers Dale Earnhardt, Jr. and Jimmie Johnson will each launch their own weekly radio shows tomorrow February 16th, on XM Satellite Radio.

Jimmie Johnson: Not What You Expected with Marty Smith will debut at 7:00pm ET on XM's NASCAR Radio - XM Channel 144. Featuring Johnson and co-host Smith giving a behind-the-scenes look at the sport each week for a fresh perspective on racing, music, and more.

Dale Jr.'s Unrestricted will premiere at 7:30pm ET, also on XM's NASCAR Radio. Earnhardt will be talking about the latest happenings on the NASCAR circuit, as well as providing music and other personal interests on the show.

XM Satellite Radio will carry all 39 games of the World Baseball Classic, an unprecedented baseball event that features many of the best players in the world competing for their home countries and territories, on XM's Major League Baseball play-by-play channels 176 to 189.

XM will provide complete play-by-play coverage and in-depth analysis of the historic competition, which will open play at the Tokyo Dome on March 3rd and conclude with the two semi-final games and final game at PETCO Park in San Diego, Calif. on March 18th and 20th, respectively.

[XM Radio's World Baseball Classic via BeyondXM]