Buffy the Vampire Slayer (7 p.m., FX) starts nightly reruns, beginning with the very first episode. So now you have no excuse. The delayed fall season gets underway tonight with the premieres of The King of Queens (8 p.m., CBS), 7th Heaven (8 p.m., WB), Everybody Loves Raymond (9 p.m., CBS) and Angel (9 p.m., WB). Ben Stiller is profiled on a new Biography (8 p.m., A&E). Ally McBeal (8 p.m., FX) and The Practice (9 p.m., FX) also begin nightly reruns with their series pilots. The Ellen Show (9:30 p.m., CBS) has a sneak preview before settling into its regular time slot this Friday. Ellen DeGeneres (who did you expect?) returns to sitcoms with a show about a woman who goes back home to live with Mom (Cloris Leachman) after her dot-com career fizzles. Oh, yeah -- she's gay. The new drama series Crossing Jordan (10 p.m., NBC) also debuts. Jill Hennessy ("Law & Order") stars as a feisty Boston medical examiner.
The four-night series Evolution (8 p.m., PBS, check local listings) examines Charles Darwin's theory from a historical, scientific and cultural perspective. Ah, Fox: Who Wants to Be a Princess? (8 p.m., Fox) gives an unnamed European prince his pick of 30 women, pageant-style. However, the winner gets no marriage proposal, just a flashy diamond necklace. Princess Darva?
Braves at Marlins (7 p.m., TBS)
Redskins at Packers (9 p.m., ABC)
David Letterman (CBS) Amy Brenneman
Jay Leno (NBC) Mira Sorvino, Emeril Lagasse, Diana Krall
Politically Incorrect (ABC) Tommy Smothers, Michael Eric Dyson
Conan O'Brien (NBC) Al Roker
Craig Kilborn (CBS) Tom Everett Scott
All times Eastern unless noted.