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'The Biggest Loser: Couples,' Jan. 6
The Biggest Loser: Couples ( NBC)
Premieres: Tuesday, Jan. 6
The latest incarnation of the weight-loss show brings teams of two -- some parent and sibling, some best friends and even an actual couple -- together for weeks of intense diet, training and reality-show manipulation. This season features the show's youngest, oldest and heaviest contestants ever.