On Buffy the Vampire Slayer (8 p.m., WB), Ben asks Buffy out and the gang has to contend with a lonely robot girl. On The Mole (8 p.m., ABC), two players are "trapped by a herd of sheep." Finally, this show is getting exciting! On Frasier (9 p.m., NBC), Daphne's overeating catches up to her and a case of mistaken identity leads Frasier to a date with Kenny's wife (Illeana Douglas). The vampire with a soul goes on a kamikaze mission to hell to confront the real boss of Wolfram & Hart on Angel (9 p.m., WB). The American Experience (9 p.m., PBS, check local listings) presents Part 2 of the three-part "Abraham and Mary Lincoln: A House Divided." Ed (10 p.m., NBC) has a bonus episode in which the former owner of Stuckeybowl, Big Rudy (John Goodman), wants the bowling alley back.
Heat at Knicks (8 p.m., TBS)
David Letterman (CBS) Samuel L. Jackson, "Survivor" castoff Mitchell Olson
Jay Leno (NBC) Courtney Cox-Arquette, Gloria Estefan, Jimmy Kimmel
Politically Incorrect (ABC) Herbie Hancock, Ananda Lewis
Conan O'Brien (NBC) Steve Zahn
Craig Kilborn (CBS) Moby, Lee Ann Womack
All times Eastern unless noted.