Review | The Biggest Loser

Credit: Trae Patton/NBC

Air date: Tuesday 10/12

Us rating: ** 1/2

The once-mighty series is shedding ratings -- not a shock considering this week's uneven two-hour jaunt. Not even a peek at trainer Bob Harper's house (he serves contestants a vegan lunch) and a lesson in healthy desserts from chef Curtis Stone can spice up the usual mishmash of treadmill tears, weigh-ins and blatant product plugs. At least the final challenge -- which involves rolls of carpeting! -- shows zest. (NBC, 8 P.M.)