Today on TV

Samantha Who? (7 p.m., Ch. 4): Samantha tries to sabotage Todd's competition for a job at the local newspaper.

30 Rock (7 and 8:30 p.m., Ch. 5): If you've never caught on to this show, catch some of the repeats this summer. It's hilarious. Tonight we get a double-dip. First up, it's a first-season episode from 2006 — Liz (Tina Fey) puts Jack (Alec Baldwin) in a sketch and Tracy (Tracy Morgan) claims he's illiterate. Then, in an episode from earlier this year, Liz insists she and Drew have their first official date on Valentine's Day. Because, busy woman that she is, Liz doesn't realize it's Valentine's Day.

So You Think You Can Dance (8 p.m., Ch. 13): Two of the remaining 14 contestants will be eliminated.

The Listener (9:01 p.m., Ch. 5): Toby discovers a group of runaways in danger. But I'm sure he'll use his powers as a mind-reading paramedic to help them. (Postponed from last week.)