Series
Buffy the Vampire Slayer (8 p.m., WB) reruns the one where Buffy's annoying roommate is putting her in a really bad mood. Last week's episode, "Hush," was the first great episode this season. Joss Whedon's sneaky answer to "Scream" brought the series back into audacious form with genuinely scary voice-stealing demons, nearly a half-hour of silent-movie action and, perhaps, the beginning of a college lesbian experience for Willow. Hopefully, "Buffy" is back. Nova (check local times, PBS) presents "Electric Heart," a look at progress in artificial heart technology since the first device was implanted 30 years ago. Grace uses Will as bait to land an important (and gay) client on a rerun of Will & Grace (9 p.m., NBC). Angel (9 p.m., WB) reruns the one about the spooky doctor who stalks a woman by detaching his eyes and hands and psychically sending them after her. Sports Night (9:30 p.m., ABC) is one of the few shows not airing a rerun tonight. Dana's football jock brother has been busted for using steroids; Secret Santa time has the staff in a panic. On a new episode of Once and Again (10 p.m., ABC), Lily tries to sort out her feelings for Jake and Rick and decide whether she really wants to end her marriage.
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Specials
The documentary Radio City: The Story Behind the Showplace (8 p.m. EST/10 PST, American Movie Classics) chronicles the history of the legendary New York theater. Lauren Bacall hosts.
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Sports
Basketball:
Suns at Spurs (8 p.m., TNT)
Hockey:
Blues at Coyotes (9 p.m., ESPN2)
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Talk
Rosie O'Donnell (syndicated) Tim Allen, Courtney Love
David Letterman (CBS) Emily Watson, LL Cool J
Jay Leno (NBC) Jennifer Tilly, Joan Embry, the Rockettes
Charlie Rose (PBS) Danny DeVito, R.E.M.
Politically Incorrect (ABC) Lela Rochon, Adam Werbach
Conan O'Brien (NBC) Alan Rickman, Tyra Banks, Matthew Sweet
