Here's who's on the late night shows tonight.

• Charlie Rose: Samantha Power
• The Daily Show: Mark Siegel (repeat)
• The Colbert Report: David Grace and Richard Thompson Ford (repeat)
• The Late Show with David Letterman: Steve Martin and Raymond Crowe
• Jay Leno: Heidi Klum, James McAvoy, and John Fogerty
• Jimmy Kimmel Live: Taylor Dayne
• Tavis Smiley: Ruby Dee and Michael Scheuer
• Late Night with Conan O'Brien: Barbara Walters, Vladimir Klitschko, and Black Mountain
• The Late, Late Show with Craig Ferguson: Don Rickles and Joe Mantegna
• Last Call with Carson Daly: Summer Glau and Fat Joe

• At 8, CBS has a new Survivor.
• FOX has a new American Idol at 8, followed by a new Don't Forget The Lyrics.
• CNN has a Democratic Debate at 8, followed by endless analysis.
• Also at 8: BBC America has a new Ramsay's Kitchen Nightmares.
• At 9, ABC has a new Lost, then a new Eli Stone.
• NBC has a new Celebrity Apprentice at 9, followed by a new Lipstick Jungle.
• There's a new Supernatural on The CW at 9.
• HGTV has a new Divine Design at 9.
• At 9:30, HBO has a new In Treatment.
• At 10:30, Food Network has a new Ace of Cakes.

Check your local TV listings for more.