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

• Charlie Rose: Mel Karmazin
• The Daily Show: Howard Kurtz
• The Colbert Report: Chris Jordan
• The Late Show With David Letterman: Anne Heche, Sue Johanson, and Mariza
• Jay Leno: Joaquin Phoenix, Gordon Ramsay, and Vanessa Carlton
• Jimmy Kimmel Live: Jason Schwartzman, Jennifer Esposito, and Jose Gonzalez
• Tavis Smiley: John Bolton
• Late Night With Conan O'Brien: Jon Bon Jovi, Eva Mendes, and Klaxons
• The Late, Late Show With Craig Ferguson: Tom Arnold and Tori Amos
• Last Call With Carson Daly: David Duchovny and Tig Notaro

• At 8, ABC has a new Ugly Betty, then new episodes of Grey's Anatomy and Big Shots.
• CBS has a new Survivor at 8, followed by new episodes of CSI and Without A Trace.
• NBC has new episodes of My Name Is Earl, 30 Rock, The Office, and ER.
• There's a new Are You Smarter Than A Fifth Grader on FOX at 8, then a new Don't Forget The Lyrics.
• The CW has a new Smallville, followed by a new Supernatural.
• At 8:30, HGTV has a new Carter Can, then a new Divine Design.
• At 9, CNN's Larry King interviews Stephen Colbert.
• TLC has a new American Chopper at 9.
• At 10, USA has a new Law and Order: CI.
• At 10:30, Comedy Central has a new Drawn Together.

Check your local TV listings for more.