TONIGHT'S MUST-SEE

"In Treatment," 6-8:30 p.m., HBO.

The second season got off to a great start Sunday, but slumps tonight.

Sunday's episodes rerun first. The opener (6 p.m.) gives the therapist (Gabriel Byrne) a jolting confrontation with the grieving father (Glynn Turman) of a patient who died; that sends him to a troubled malpractice lawyer (Hope Davis). The second has superb work by Alison Pill, as a college student who resists help, even in deep crisis.

It's a great start, but the next three episodes fade. There's a boy and his divorcing parents (7 p.m.), a stressed executive (7:25 p.m., with John Mahoney) and then the therapist's mentor (7:55, Dianne Wiest). Each new episode is skillfully acted, but vague.

"Roommates," 9 p.m., ABC Family.

In its third episode, this show comes up with a real winner, a frantic and funny episode that starts with one lie, then builds.

Hope (Tamera Mowry) refuses to admit she lost her big-deal job. She's trying to keep Katie from knowing she actually works at a coffee shop.

Now Katie is applying to Hope's old company. Mark -- the roommate who loves Katie from afar -- helps perpetuate the lie. From there, things build in the properly ditzy situation comedy style.

OTHER CHOICES:

-- "Dancing With the Stars," 7 p.m., ABC. Last week, both Holly Madison and Steve Wozniak were dumped. She had been a last-minute addition to the show; he was the first guy dropped, after previous ousters for Belinda Carlisle and Denise Richards. Nine celebrities remain.

-- "House," 7 p.m., Fox. Meat Loaf, the rock star, plays a dying man who seems to get better as his wife deteriorates.

-- "Chuck," 7 p.m., NBC. This should be a pleasant time for Chuck, who meets his long-absent father (Scott Bakula) and works with his hero (Chevy Chase). Neither situation goes as expected.

-- "Greek," 7 p.m., ABC Family. This so-so episode centers on rush week. Among sororities, ZBZ is at war with the new IKI, complete with espionage. Among fraternities, Rusty tries to lure a football star (played by pop star Jesse McCartney) to the informal Kappa Tau gang.

-- "Heroes," 8 p.m., NBC. The character known as "HRG" finds his marriage wobbling and his life spinning out of control,

-- "Surviving Suburbia," 8:32 p.m., ABC. Bob Saget and Cynthia Stevenson play parents who don't fit into their upbeat, upscale neighborhood, This show follows standard sitcom lines -- complete with goofy neighbor (Jere Burns) -- but is semi-salvaged by a few good twists and Stevenson's good work.

-- "Medium," 9 p.m., NBC. James Van Der Beek, the former "Dawson's Creek" star, plays the shifty son of a missing woman.

-- "House of Life: The Old Jewish Cemetery in Prague," 10 p.m., PBS. More than 11,000 gravestones are packed into this Czech cemetery, but that's just the beginning. There have been 12 layers of burials, historians say, with perhaps 100,000 bodies. This is a place rich with history and emotion; it's captured in a subtle and well-crafted documentary.