Tuesday's Best Bets on TV

“House” (8 p.m., Fox): A teen who is bullied collapses during her Christmas production and her health starts getting worse.

“The Biggest Loser: Families” (8 p.m., NBC): We’re down to crunch time on “The Biggest Loser: Families” as the final four contestants watch highlight videos and reflect on the remarkable progress they’ve made.