Buffy the Vampire Slayer (8 p.m., WB) has another rerun; it's the one in which Buffy and Riley try to deal with each other's secret identities. Biography (8 p.m., A&E) has a new profile of George Carlin. Will & Grace (9 p.m., NBC) reruns the episode in which Grace and Jack get their knickknacks appraised on "Antiques Roadshow." Angel (9 p.m., WB) is a rerun, too; Cordelia has one date with a guy and wakes up hugely pregnant. The new sitcom Talk to Me (9:30 p.m., ABC) stars Kyra Sedgwick as a kooky New York radio personality. Beverly D'Angelo costars as a Dr. Laura knockoff named Dr. Debra. A job-related tragedy pushes the fragile Danny's buttons on NYPD Blue (10 p.m., ABC).
Divas 2000: A Tribute to Diana Ross (9 p.m., VH1) gathers up Mariah Carey, Donna Summer, Faith Hill and other high-maintenance stars for a benefit concert honoring a textbook diva if there ever was one. Meanwhile, over in Nashville, Barry Manilow does Manilow Country (9 p.m., The Nashville Network), a concert of his songs sung as duets with country artists like Trisha Yearwood, Gillian Welch and Lila McCann. He writes the songs that make the whole world sing.
Spurs at Kings (8 p.m., TNT)
Rosie O'Donnell (syndicated) Christina Aguilera, Omar Epps
David Letterman (CBS) Jenna Elfman, Children of Uganda dance troupe
Jay Leno (NBC) Lucy Lawless, D.L. Hughley, Patti Smith
Politically Incorrect (ABC) Eric Idle, Elizabeth Perkins
Conan O'Brien (NBC) Tom Arnold, Heidi Klum