TONIGHT'S MUST-SEE

"House," 8 p.m., Fox. Here is "House" at its greatest — sometimes funny, often serious, always smart. And this time, it's a tad surreal. Dr. House has been in a bus accident. Trying desperately to remember key facts, he drifts in and out of daydreams. It's compelling, setting up next week's season finale.

TONIGHT'S MIGHT-SEE

"The Bachelor" finale, 9:02 p.m., ABC. Matt Grant, the 27-year-old London financier, considers variations on an American archetype — California blondes: one an actress and one a drug representative. Shayne Lamas, 22, is the daughter and granddaughter of actors (Lorenzo Lamas and Michelle Smith, Fernando Lamas and Arlene Dahl). She played Emily on "General Hospital." The other finalist is simply identified as Chelsea. She's 25, originally from Colorado.

OF NOTE

"Dancing With the Stars," 7 p.m., ABC. We're down to four celebrities — two athletes (skater Kristi Yamaguchi and football star Jason Taylor) and two actors (Cristian de la Fuente and Marissa Winokur).

"American Gladiators," 7-9 p.m., NBC. A new edition begins, with the same hosts (Laila Ali, Hulk Hogan) and different games. Tonight starts with a carpenter facing a grocery-store owner, and a firefighter (and Chernobyl survivor) facing a single mom who has a black belt.

"Bones," 7 p.m., Fox. After a singer is killed, the team visits the open-mike concert scene. This includes roles for former "American Idol" people Ace Young and Brendan Rogers.

"Medium" season finale, 9 p.m., NBC. Allison helps people who feel their home is haunted. Meanwhile, Joe learns more about the beautiful venture capitalist he's working with.

"Sex: The Revolution" debut, 7 p.m. and 9 p.m., VH1. In the 1950s, Americans didn't talk much about sex before marriage. Then Playboy and the "Kinsey Report" arrived in 1953; more jolts were coming. This four-night series packs in too much. Still, it offers some great clips, plus comments from pioneers, including Hugh Hefner and Helen Gurley Brown.