Best bets on TV tonight

“House” (8 p.m., Fox): On “House,” Dr. Cranky resumes his post just in time to treat a porn film star suffering from eye pain. We won’t ask.

“Two and a Half Men” (9 p.m., CBS): Tricia Helfer alert: The “Battlestar Galactica” vixen visits “Two and a Half Men,” playing Chelsea’s hot college roomie. Naturally, Charlie’s restraint is severely tested.