Monday, Feb. 18

Firefly (Sci-fi, 8 a.m.-7 p.m.) - Joss Whedon's cult space Western gets the marathon treatment.

Prison Break (FOX, 8 p.m.) - Say goodbye and good luck. It's season finale time for the Prison boys.

Terminator: The Sarah Connor Chronicles (FOX, 9 p.m.) - Sarah's got her hands full between trying to save Brian Austin Green and explaining her past to ex-boyfriend Charley.

History of the Joke (History, 9 p.m.) - Comic Lewis Black searches for what it takes to craft the best joke in this documentary also featuring George Carlin, Kathy Griffin and Robin Williams.

Medium (NBC, 10 p.m.) - After a four-week hiatus, the Dubois family is back with an episode directed by David Arquette and guest starring Steven Culp (Bree's dead husband on Desperate Housewives). Tonight, Allison loses her hearing while working on a case involving a missing deaf girl.

Tuesday, Feb. 19

American Idol (FOX, 8 p.m.) - The first live performance show kicks off with the boys.

Nip/Tuck (FX, 10 p.m.) - The always hilarious Jennifer Coolidge returns as actress Candy Richards while tragedy strikes the twisted McNamara/Troy family in tonight's season finale.

Wednesday, Feb. 20

American Idol (FOX, 8 p.m.) - It's the ladies' turn to show off their pipes.

America's Next Top Model (The CW, 8 p.m.) - The dramatics are back with the return of Tyra's not-quite-a-top-model competition, which has moved to New York.

Project Runway (Bravo, 10 p.m.) - It's a reunion, which can only mean one thing: Ricky is going to cry.

Thursday, Feb. 21

American Idol (FOX, 8 p.m.) - The results are in, and four of the contestants are going home tonight.

Lost (ABC, 9 p.m.) - Here's hoping we finally found who's waiting at home in this Kate centric episode.

Supernatural (The CW, 8-10 p.m.) - At 9 p.m., Agent Henricksen finally catches up with the boys in the last new episode until April 24. At 8 p.m., find out how the Winchesters slipped through Henricksen's fingers during their first encounter in a rerun of last season's fantastic "Nightshifter" episode.

Eli Stone (ABC, 10 p.m.) - Eli takes on the man upstairs, and we do mean The Man.

Without A Trace (CBS, 10 p.m.) - This crossover rerun finds CSI's Gil Grissom and Jack working together to track a serial killer.

Friday, Feb. 22

Chuck (Sci-fi, 8 p.m.) - The NBC series' delightfully escapist first season repeats on Sci-fi Channel every Friday.

The Soup (E!, 10 p.m.) - How about Joel McHale to replace Conan?

Saturday, Feb. 23

2008 Film Independent Spirit Awards (IFC, 5 p.m.) - Celebrate the performances and films that got snubbed by the Oscars with funny man/host Rainn Wilson.

Sunday, Feb. 24

80th Annual Academy Awards (ABC, 8:30 p.m.) - Now that the writers' strike is over, the Oscars are going on as originally planned. Some of the things you can look forward to this year: musical performances from Enchanted's Amy Adams, Pushing Daisies' Kristin Chenoweth (singing "That's How You Know" from Enchanted) and Once, as well as presenters as varied as Seth Rogen, Miley Cyrus and James McAvoy.

For those looking for more meaty programming, the following series are dark and grisly, much like many of this year's Best Picture nominees:

Dexter (CBS, 10 p.m.) - It's a sanitized rerun, but...

Breaking Bad (AMC, 10 p.m.) - This one is new.

Story by Vlada Gelman contributing writer