TONIGHT'S MUST-SEE

"Dancing With the Stars" results show, 8 p.m., ABC. Tonight, we learn which three stars will make it to next week's finale. Helio Castroneves and Melanie Brown drew raves last week. He's a race-car driver; she's a Spice Girl, alternately known as Mel B and Scary Spice. They face the popularity of singer Marie Osmond and actress Jennie Garth. Now someone will be dropped.

"Frank TV" debut, 9 p.m., TBS. Even a great impressionist, which Frank Caliendo is, must also have strong material. One sketch, in which he plays every "Seinfeld" character, is so-so. His John Madden character gets little to do. Just wait, though. There's a great take-off on movie trailers, plus funny swipes on both political sides. A lusty Bill Clinton introduces his presidential library. And a befuddled George W. Bush ducks out of his father-daughter wedding talk; it's delivered by a creepy Dick Cheney.

OF NOTE

"The Biggest Loser" 7 p.m., NBC. As a reward, Alison Sweeney takes the contestants to the set of her soap opera, "Days of Our Lives." It's a bigger reward than they realized: Their friends and family are there, as a surprise.

"A Charlie Brown Thanksgiving" (7 p.m.) and "He's a Bully, Charlie Brown" (7:30), ABC. First is a classic cartoon, going back to 1973. Then is one Charles Schulz wrote shortly before his death in 2000; with Snoopy as his trainer, Charlie battles a mean marbles champ at summer camp.

"Bones," 7 p.m., Fox. The team tracks a possible serial killer amid other troubles. Brennan's brother resurfaces; Booth promptly arrests him.

"House," 8 p.m., Fox. A magician apparently had a heart attack during a difficult escape. Or was he faking the attack, as an excuse for failing the stunt? House is suspicious.

"Frontline: On Our Watch," 9 p.m., PBS. After the horrors of Rwanda and Srebrenica, powerful nations promised to stop future genocides. They failed totally, this powerful documentary says. Over a four-year period, the United Nations passed toothless resolutions; in that time, 200,000 people were killed, 2.5 million were left homeless and countless people were raped and brutalized.

"Law & Order: Special Victims Unit," 9:02 p.m., NBC. When a teen is killed, an ultimate fighting champion is a suspect.

"The Bachelor: After the Rose," 9 p.m., ABC. Yes, reality shows clearly dominate the night. This is a follow-up, catching Brad and whomever he chose yesterday. Chances are, they'll say they're very happy; then people will wait to see if they ever marry.