Here's who's sitting down on the couch on the late night shows tonight.

• Charlie Rose: Valerie Plame Wilson and Mohamed Elbaradei
• The Daily Show: Valerie Plame Wilson
• The Colbert Report: Craig Venter
• The Late Show With David Letterman: Jennifer Connolly, Slash, and Nicole Atkins
• Jay Leno: Tom Cruise, Rep. Ron Paul, and The Sex Pistols
• Jimmy Kimmel Live: Rebecca Romijn and James Lipton
• Tavis Smiley: Paul Krugman and Serj Tankien
• Late Night With Conan O'Brien: Ethan Hawke, Susie Essman, and Zappa Plays Zappa
• The Late, Late Show With Craig Ferguson: Steve Carell and Good Charlotte
• Last Call With Carson Daly: Criss Angel

• At 8, ABC has It's The Great Pumpkin, Charlie Brown, followed by new episodes of Dancing with the Stars and Boston Legal.
• CBS has a new NCIS at 8, then new episodes of The Unit and Cane.
• FOX has new episodes of Bones and House.
• NBC has a new Singing Bee at 8, then new episodes of The Biggest Loser and Law and Order: SVU.
• There's a new Beauty and the Geek on The CW at 8, followed by a new Reaper.
• PBS has a new Nova at 8, then a new Frontline.
• HBO has a new Five Days at 8.
• At 9, Bravo has two new episodes of Queer Eye.
• Discovery has a new Dirty Jobs at 9, then the documentary Everest: Beyond The Limit.
• There's a new Throwdown with Bobby Flay on Food Network at 9.
• At 10, FX has the season premiere of Nip/Tuck.
• A&E has a new Criss Angel: Mindfreak at 10.
• Sci-Fi has a new ECW at 10.
• Also at 10: Comedy Central has the special Ralphie May: Girth of a Nation.
• At 10:30, Food Network has a new Two Dudes Catering.

Check your local TV listings for more.