* Tonight, a Democratic presidential debate on C-SPAN and MSNBC.
* Duke vs. Virginia in college basketball action on ESPN.
* Itzhak Perlman performs on "Live From Lincoln Center" on WETA.
Live from the University of New Hampshire, a debate between Vice President Gore and former senator Bill Bradley moderated by ABC News's Peter Jennings (C-SPAN and MSNBC at 7 p.m. and repeated on Channel 26 at 11 p.m.). ABC's "Nightline" will air extended portions of the debate at 11:35.
Live From Lincoln Center. Violinist Itzhak Perlman performs with the Orpheus Chamber Orchestra and pianist Rohan DeSilva. 90 minutes (Channel 26 at 8).
NBA Basketball. Washington at Chicago (HTS, 8:30).
College Basketball. Duke at Virginia (ESPN at 9).
American Masters: Paul Taylor, Dancemaker (CC) chronicles a less-than-perfect year in the life of the choreographer and his troupe. 90 minutes (Channel 26, 9:30).
Two Guys and a Girl (CC). In a wine-induced stupor, Sharon asks Ashley to be her bridesmaid (Channel 7 at 8).
it's like, you know . . . (CC). Shrug is the prime suspect when Robbie's mansion burns to the ground (Channel 7 at 8:30).
The West Wing (CC). The Prez calls for the assistance of a boozy British diplomat to help quell tensions between India and Pakistan (Channel 4 at 9).
Greed: The Multi-Million Dollar Challenge (CC). Night 1 of a consecutive three-night run of the game show hosted by Chuck Woolery (Channel 5 at 9).
The Drew Carey Show (CC). Drew stages a play promoting racial harmony (Channel 7 at 9).
Norm (CC). Laurie's sexy twin sister is evil, evil, evil, I tell ya! (Channel 7, 9:30).
Law & Order (CC). A school bully is suspected in a teenager's murder (Channel 4 at 10).
TV Guide's Truth Behind the Sitcom Scandals 2 (CC). Everything you always wanted to know about the sitcoms "Diff'rent Strokes" and "Gilligan's Island" but were afraid to ask; includes interviews with series stars Todd Bridges, Gary Coleman, Bob Denver, Russell Johnson, Tina Louise and Dawn Wells. One hour (Channel 5 at 8).