Today on TV

• NBA Finals (7 p.m., Ch. 4): Game 6 — Detroit Pistons at San Antonio Spurs

• Katie Couric Special (7 p.m., Ch. 5): Gag — Couric and NBC give TV time to admitted liar/criminal Jennifer Wilbanks, the so-called "runaway bride." Don't watch!

• Gilmore Girls (7 p.m., Ch. 30): Luke and Lorelai's relationship becomes public knowledge. (Repeat)

• I Want to be a Hilton (8 p.m., Ch. 5): This would be just another stupid reality show if it weren't so ridiculous — Kathy Hilton, who failed so spectacularly to raise her daughter Paris with any degree of class or sophistication, is going to teach 14 "hicks" how to be classy and sophisticated? Puh-leeze.

• Nick at Nite celebrates its 20th anniversary with a three-night event — episodes of "classic" shows dating from 1985, the year the cable network signed on. Tonight it's an installment of Who's the Boss? (8 p.m., Nick), an episode of Growing Pains (8:30 p.m., Nick) and an hour of Moonlighting (9 p.m., Nick) in which the cast — including Bruce Willis and Cybill Shepherd — perform a "Moonlighting"-ish version of "The Taming of the Shrew."

• Blind Justice (9 p.m., Ch. 4): This is the final episode of this canceled series about a blind detective.

• P.O.V. (9 p.m., Ch. 7): In "The Education of Shelby Knox" — which premiered at the Sundance Film Festival — a 15-year-old girl questions her school's sex-education program.