Amazing Race (8pm, CBS) - The final three teams race to the finish line to claim the $1 million top prize.
The Simpsons (8pm, Fox) - After Homer is jailed on New Year's Eve for bribery, he agrees to go undercover as an informant against mobster Fat Tony (voiced by Joe Mantegna) to reduce his sentence. Jon Hamm does the voice of the FBI investigator.
Dexter (9pm, Showtime) - In the fifth-season finale, Dexter (Michael C. Hall) smells a trap being set for him and Lumen (Julia Stiles, left) and pulls out all the stops in an effort to avoid getting caught in it. Elsewhere, personal feelings get in the way of Debra's investigation into the Barrel Girls, and Quinn gets in a bind from which only Dexter can extricate him.
Wishful Drinking (9pm, HBO) - Carrie Fisher's autobigraphical stage production chronicles her life in and out of show business as the daughter of singer Eddie Fisher and actress Debbie Reynolds. Here's our review.
Hot in Cleveland (9pm, TV Land) - Betty White, Valerie Bertinelli, Jane Leeves, and Wendie Malick look back at the best moments (and bloopers) of their inaugural season. They also preview Season 2, which begins in January.
Marry Me (9pm, Lifetime) - In part one of a two-part movie, a social worker (Lucy Liu) with aspirations of a fairy-tale romance is torn between three suitors, all of whom propose to her. Steven Pasquale and Bobby Cannavale also star. Adrienne reviews it.
Sarah Palin's Alaska (9pm, TLC) - Palin takes fellow reality star Kate Gosselin and her brood on a camping trip.
Brothers & Sisters (10pm, ABC) - The Walkers are without their matriarch for Christmas when Nora takes off for a last-minute vacation with Karl. Meanwhile, Saul runs into a former lover (Richard Chamberlain).