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

• Charlie Rose: Randi Weingarten and Charlie Wilson
• The Daily Show: Colin Firth
• The Colbert Report: Maria Shriver
• The Late Show with David Letterman: Tina Fey, Brett Favre, and Estelle
• Jay Leno: Governor Arnold Schwarzenegger, Marilu Henner, and Old 97's
• Jimmy Kimmel Live: David Spade, Ashlee Simpson, and Jean Smart
• Tavis Smiley: Phil Donahue
• Late Night with Conan O'Brien: Amy Poehler
• The Late, Late Show with Craig Ferguson: Ben Stein, Alicia Witt, and Andrew Norelli
• Last Call with Carson Daly: Dov Davidoff, Dylan Ratigan, and Airborne Toxic Event

• At 8, ABC has a new Ugly Betty, then new episodes of Grey's Anatomy and Lost.
• CBS has a new Survivor at 8, followed by new episodes of CSI and Without A Trace.
• NBC has a new My Name Is Earl at 8, then new episodes of Scrubs, The Office, 30 Rock, and ER.
• The CW has new episodes of Smallville and Supernatural.
• FOX has a new, two-hour Are You Smarter Than A Fifth Grader? at 8.
• PBS has a new Great Performances at 8.
• At 8:30, Cartoon Network has a new Foster's Home For Imaginary Friends.
• At 9, Spike has a new TNA Impact.
• At 10, MTV has a new Rock The Cradle.
• There's a new I Know My Kid's A Star on VH-1 at 10.
• At 10:30, Food Network has a new Ace of Cakes.
• Also at 10:30, Comedy Central has a new 'Lil Bush.

Check your local TV listings for more.