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

• Charlie Rose: TBA
• The Daily Show: Christopher Walken (repeat)
• The Colbert Report: Viggo Mortensen, Ed Begley, Jr., and Father James Martin (repeat)
• The Late Show with David Letterman: Janet Jackson and John Mayer
• Jay Leno: Oprah Winfrey, Jamie Oliver, and Good Charlotte (repeat)
• Jimmy Kimmel Live: TBA (repeat)
• Tavis Smiley: Joe Mantegna and Elisabeth Bumiller
• Late Night with Conan O'Brien: Jason Priestley, Dan Naturman, and Jarrod Miller (repeat)
• The Late, Late Show with Craig Ferguson: Chi McBride and Rick Thomas (repeat)
• Last Call with Carson Daly: Joshua Malina and Pittsburgh Slim

• At 8, NBC has a new Deal Or No Deal, then a new Biggest Loser.
• Cartoon Network has Billy & Mandy Save Christmas at 8.
• BBC America has the two-hour season premiere of Life on Mars at 8.
• At 8:30, ABC has Winnie the Pooh and Christmas Too.
• At 9, CBS has two new episodes of Cane.
• Lifetime has the movie All She Wants For Christmas at 9.
• Hallmark has the movie Meet The Santas at 9.
• At 10, ABC has a new Boston Legal.
• There's a new Nip/Tuck on FX at 10.
• Discovery has a new Everest: Beyond the Limit at 10.
• ABC Family has The Life and Adventures of Santa Claus at 10.
• Sci-Fi has a new ECW at 10.
• Also at 10: Bravo has The Real Housewives of Orange County.

Check your local TV listings for more.