Today on TV

• Gilmore Girls (7 p.m., Ch. 30): Rory hosts a high-school girl who's supposedly interested in Yale but is really interested in boys.

• The Real Gilligan's Island (7 and 10:15 p.m., TBS): Just when you thought TV couldn't get any weirder, now we have a reality show based on an old sitcom. Really. There are actually two teams, each consisting of a Gilligan, a Skipper, a millionaire and his wife, a movie star, a professor and Mary Ann. Or people who are sort of like the characters. And they're on a desert (not deserted) island competing against each another. Frankly, I don't quite get it myself.

• Jeopardy! (7:30 p.m., Ch. 14): This is Ken Jenning's 75th appearance on the show, so if those reports that he's about to lose are correct this could be the big night. Some Web sites are reporting this is the night he loses; others are reporting that this is his final victory and then he's going to lose on Wednesday. Or maybe they're all wrong. . . .

• House (8 p.m., Ch. 13): Was a young man's collapse caused by sex, drugs or something else?

• One Tree Hill (8 p.m., Ch. 30): Peyton is the subject of gossip at school.

• Rodney (8:30 p.m., Ch. 4): Rodney can't get a saleswoman out of his head.

• Judging Amy (9 p.m., Ch. 2): Amy stresses as she awaits results of a mammogram.

• NYPD Blue (9 p.m., Ch. 4): Jones' gun is identified as the weapon that killed Michael's father.

• Law & Order: SVU (9 p.m., Ch. 5): A serial rapist turns killer.