CBS Sports’ and Turner Sports’ exclusive coverage of the 2011 NCAA Division I Men’s Basketball Championship tips off with first-round coverage of the NCAA First Four at 6:30 p.m. ET March 15 and 16 on truTV. Second-round coverage begins at noon ET March 17 and 18, with all games available live in their entirety across four national television networks: TBS, CBS, TNT and truTV.

Jim Nantz, Clark Kellogg and Steve Kerr call the action, with Tracy Wolfson courtside for the two First Four games on March 15. Gus Johnson and Len Elmore, along with courtside reporter Marty Snider, handle the call for the games on March 16. The studio coverage for March 15’s First Four games features Greg Gumbel, Ernie Johnson, Charles Barkley, Greg Anthony, Kenny Smith, and Seth Davis. On March 16, Matt Winer, Steve Smith and Seth Davis offer analysis in the studio. Coverage begins at 6 p.m. both days.

Two studios, based in New York and Atlanta, will be used to cover all the action. Studio coverage will be anchored by Gumbel and Johnson, who will share hosting duties during each day. Barkley, Anthony and Smith will provide analysis throughout the tournament alongside Gumbel or Johnson from the CBS Broadcast Center in New York. Analysts Reggie Miller and Davis will join the New York studio rotation for the second week of the tournament. Matt Winer will host the studio coverage from Turner’s Atlanta studio with analysts Davis and Steve Smith.

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Fans also will also be able to access the games through NCAA March Madness on Demand. NCAA March Madness on Demand will provide live streaming video of every game of the new 68-team tournament as they are broadcast by CBS Sports and Turner Sports, starting with the First Four through the Final Four semifinals and national championship game from Houston on April 2 and 4.