On NBC’s Biggest Loser the contestants go through brutal workouts with trainer Bob Harper or Jillian Michaels. The contestants are required to lose more calories than they pack on, giving them a good weight loss percentage. If the contestants don’t lose the required amount of weight and fall below the yellow line, they go into a voting room and are eliminated from the show. The contestants on the show are always having challenges waiting for them to complete the rewards are always worthwhile; Whether it be a phone call or letter from home, immunity for that week or giving another team a disadvantage for the next weigh in. The weigh in for the contestants is the most nerve-wracking part because nobody wants to go home and lose the chance to win a quarter of a million dollars.