On The Mole (8 p.m., ABC), one of the players is "kidnapped" and the others have to mount a rescue mission. Ben Stein is profiled on a new Biography (8 p.m., A&E). Buffy the Vampire Slayer (8 p.m., WB) reruns the one where we find out where Dawn came from. Nova (8 p.m., PBS, check local listings) presents "The Sultan's Lost Treasure," chronicling the excavation of a treasure-laden 15th century Chinese junk at the bottom of the South China Sea near Brunei. On Frasier (9 p.m., NBC), the doc's video-game-addicted son Frederick comes to visit. Frontline (9 p.m., PBS, check local listings) takes a two-hour look at the Clinton years, hosted by Ted Koppel. (It's a joint production of "Frontline" and ABC's "Nightline.") On a new Angel (9 p.m., WB), it turns out our boy was serious when he fired Cordelia, Wesley and Gunn -- he's gone bad again! On NYPD Blue (10 p.m., ABC), Diane and Danny face the morning after, and we learn the prognosis for Andy's son.
Raptors at Rockets (8 p.m., TBS)
Rosie O'Donnell (syndicated) Barbara Walters, Lena Olin
David Letterman (CBS) TBA
Jay Leno (NBC) Cameron Diaz, Donal Logue, Shelby Lynne
Politically Incorrect (ABC) Ron Reagan, Jane Seymour
Conan O'Brien (NBC) Marla Sokoloff, Linkin Park
All times Eastern unless noted.