On Friends (8 p.m., NBC), Rachel and Phoebe both want to be Monica's maid of honor. Catfight! Lorelai and her mother both plan birthday parties for Rory on Gilmore Girls (8 p.m., WB). On Will & Grace (9 p.m., NBC), Will plays Cyrano as Jack tries to woo his latest crush (guest Patrick Dempsey). Conan O'Brien's former sidekick Andy Richter shows up on Just Shoot Me (9:30 p.m., NBC) as Maya's best friend from high school, who's now a motivational speaker with a big problem. Greene and a heart patient take the helicopter ride from hell on ER (10 p.m., NBC).
No, you didn't hallucinate the first one: Battle of the Child Geniuses 2 (8 p.m., Fox) picks up where its crowd-pleasing predecessor left off -- with freakishly intelligent children forced to fight like brain BattleBots for the title of "Smartest Kid in America."
76ers at Timberwolves (8 p.m., TNT)
Rosie O'Donnell (syndicated) Susan Sarandon
David Letterman (CBS) Patricia Arquette
Jay Leno (NBC) Jim Carrey, Hootie and the Blowfish
Politically Incorrect (ABC) Joe Piscopo, Tom Sizemore
Conan O'Brien (NBC) Adam Sandler, Al Franken
All times Eastern unless noted.