Alison Sweeney, Robert Harper, and Jillian Michaels on The Biggest Loser. (Photo: NBC)

Starring: Caroline Rhea, Jillian Michaels, Robert Harper

Reality series in which 12 contestants become roommates under the same roof and struggle to shed excess pounds by following a disciplined routine of exercise and dieting while facing the possibility of elimination. Contestants will then have to maintain their weight and shape by carefully managing their behavior outside of the controlled house atmosphere, with the winner being the one who is most physically fit across the boards.