NBC has announced it has renewed The Biggest Loser for two more editions that will air during the 2009-2010 television season.

"The Biggest Loser is a positive, life-enhancing show that has resonated with our audience and has created a solid and loyal fan base," said Paul Telegdy, the network's recently-hired new reality programming chief.  "This inspirational franchise series will continue with fresh ideas and heartwarming stories."

The Biggest Loser premiered on NBC in October 2004, after which three additional editions aired as part of the network's 2005, 2006 and 2007 fall programming schedules.  However beginning last January, NBC also began airing a second The Biggest Loser edition as part of its midseason programming schedules.

"I always felt [The Biggest Loser] should be on in the first quarter because that's when people are focused on their weight-loss goals," Ben Silverman -- The Biggest Loser executive producer who was named co-chairman of NBC Entertainment in May 2007 -- told TV Week last year.

Last week, the second season of The Biggest Loser: Couples -- the show's seventh overall season -- premiered on NBC.

The Biggest Loser is a production of Reveille LLC (the production company Silverman used to own), 25/7 Productions and 3Ball Productions, and executive produced by Silverman, Dave Broome, JD Roth, Todd A. Nelson and Mark Koops.