On Buffy the Vampire Slayer (8 p.m., WB), Spike teams up with Adam to neutralize Buffy by turning the Scooby Gang members against one another. Also, Angel comes to town to size up this Riley dude. Will and Grace meet a strangely familiar elderly couple on Will & Grace (9 p.m., NBC). Angel (9 p.m., WB) -- apparently back from his trip to Sunnydale -- does battle with an anti-vampire militia. Just Shoot Me (9:30 p.m., NBC) parodies A&E's "Biography" with an episode done like an A&E profile of Nina Van Horn (Wendie Malick), the fashionista with the colorful and hard-living past. Frontline (check local times, PBS) presents "Return of the Czar," a look at what the election of Vladimir Putin means for Russia's relationship with the United States. The squad is joined by a pair of British cops to hunt a British serial killer on NYPD Blue (10 p.m., ABC).
Fox does it again with the two-hour special Battle of the Child Geniuses: Who Is the Smartest Kid in America? (8 p.m., Fox). Followed by "What Kind of Parents Would Volunteer Their Kids for a Fox Freak Show?"
Braves at Marlins (7 p.m., TBS)
Flyers at Penguins (7 p.m., ESPN2)
Knicks at Heat (8 p.m., TNT)
Jazz at Trail Blazers (10:30 p.m., TNT)
Rosie O'Donnell (syndicated) John Travolta, Hanson
David Letterman (CBS) John Travolta, "Kiss Me Kate" cast
Jay Leno (NBC) Barry Manilow, Tori Spelling
Politically Incorrect (ABC) Drew Carey, Bill O'Reilly
Conan O'Brien (NBC) Kyle MacLachlan, Britney Spears, Guided by Voices