The Biggest Loser (season 1)

The Biggest Loser (season 1) is the first season of the  NBC  reality television series entitled  The Biggest Loser , which premiered on October 19, 2004. The show features overweight contestants competing to lose the largest percentage of their body weight and receive the title of 'Biggest Loser,' along with a $250,000 grand prize. The first season featured twelve contestants divided into two teams of six players. The teams were each led by a personal trainer,  Bob Harper with the Blue Team and  Jillian Michaels with the Red Team. The first season was hosted by  Caroline Rhea.

This season was followed by Season 2 on September 13, 2005.