TONIGHT'S MUST-SEE

"The Office," 7 p.m., NBC. On the morning of the Christmas party, Michael (Steve Carell) has gone too far — again. For Christmas, he has placed his face onto Christmas cards with a photo of Carol (played by Carell's real-life wife, Nancy Walls). He's also bought tickets to a resort without consulting her. She dumps him, launching a terrific, hourlong episode.

"Survivor: Cook Islands," 7 p.m., CBS. Even if you've been skipping the show lately, this is the time to catch up. It's the second-to-last episode, setting up Sunday's two-hour finale and one-hour reunion.

OF NOTE

"Christmas in Rockefeller Center" (6 p.m.) and "A Clay Aiken Christmas" (7 p.m.), Bravo. Catch both reruns and you'll hear some great voices. The first includes Christina Aguilera, John Legend, Enya and Taylor Hicks; the second (from 2004) has Aiken and Yolanda Adams, plus Barry Manilow and Megan Mullally.

"Ugly Betty," 7 p.m., ABC. This rerun is a sub-par episode of an oft-appealing show. Betty — who is supposed to be the smart one — takes the stupid step of bringing home the only full mock-up of this month's magazine.

"Grey's Anatomy," 8 p.m., ABC. This rerun is a big, busy episode, with fascinating twists. Izzie meets the distant father of the late Denny and gets a surprise. Meanwhile, Meredith needs surgery, and Mark Sloan joins the staff.

"CSI: Crime Scene Investigation," 8 p.m., CBS. A Cirque du Soleil performer finds a body during the performance. This rerun starts a two-parter.

"Scrubs," 8 p.m., NBC. Worried about this being-a-dad thing, J.D. finally has a long talk with the mother-to-be (Elizabeth Banks); he's surprised to learn they have a lot in common. Meanwhile, Turk feels he might need extra cash, now that he's a father.

"30 Rock," 8:30 p.m., NBC. After finally re-dumping her boyfriend, Liz returns to the dating scene with advice from Jenna.

"Shark," 9 p.m., CBS. This rerun has Shark's forthright daughter feeling bitter about having to lie for him while he dates two women. Meanwhile, he's trying to prosecute a difficult case in which the body hasn't been found.