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

• Charlie Rose: a discussion about the Iowa Caucus
• The Late Show with David Letterman: Bill Maher, Ellen Page, and the cast of Young Frankenstein
• Jay Leno: TBA
• Jimmy Kimmel Live: TBA
• Tavis Smiley: Phylicia Rashad (repeat)
• Late Night with Conan O'Brien: TBA
• The Late, Late Show with Craig Ferguson: Dominic Monaghan and Jason Randal
• Last Call with Carson Daly: Alicia Keys and Shannyn Sossamon (repeat)

• CNN, MSNBC, Fox News, C-SPAN, and other networks will have coverage of the Iowa Caucus all night.
• TruTV has a marathon of Speeders all night (is this what we can expect from this network now, shows where things go really fast and lifeguards?).
• At 8, FOX has the FedEx Orange Bowl.
• NBC has a new Deal Or No Deal at 8, followed by the premiere of Celebrity Apprentice and a new ER.
• Also at 8: AMC has Rio Bravo.
• At 8:30, HGTV has a new Carter Can, then a new Divine Design.
• At 10, Spike has a new TNA Impact!
• At 11:30, TCM has Gone with the Wind.

Check your local TV listings for more.