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The Biggest Loser
Season 4
The Biggest Loser features obese people competing to win a cash prize by losing the highest percentage of weight relative to their initial weight.
Synopsis
The Biggest Loser features obese people competing to win a cash prize by losing the highest percentage of weight relative to their initial weight.
Title | The Biggest Loser |
Writer | N/A |
Director | N/A |
Created by | Ben Silverman |
Productions | 25/7 Productions |
Network | NBC |


Season 1
Oct 19, 2004
Season 2
Sep 13, 2005
Season 3
Sep 20, 2006
Season 4
Sep 11, 2007
Season 5
Jan 01, 2008
Season 6
Sep 16, 2008
Season 7
Jan 06, 2009
Season 8
Sep 15, 2009
Season 9
Jan 05, 2010
Season 10
Sep 21, 2010
Season 11
Jan 04, 2011
Season 12
Sep 20, 2011
Season 13
Jan 03, 2012
Season 14
Jan 06, 2013
Season 15
Oct 08, 2013
Season 16
Sep 11, 2014
Season 17
Jan 04, 2016
Season 18
Jan 28, 2020
Back to Basics
Sep 11, 2007
The Secret Black Team is Revealed!
Sep 18, 2007
The Pressure of Temptation
Sep 25, 2007
Bidding Wars
Oct 02, 2007
Surprise Getaway
Oct 09, 2007
Lively Beach Competition
Oct 16, 2007
Weigh-In Shocker
Oct 23, 2007
Most Emotional Elimination So Far of the Season
Oct 30, 2007
Biggest Losers Go Green
Nov 06, 2007
A Taste of Home
Nov 13, 2007
Memorable Makeovers
Nov 20, 2007
Viewers Choose the Challenge
Nov 27, 2007
A Slice of Temptation
Dec 04, 2007

"Biggest Loser" Revealed in Season Finale!
Dec 18, 2007
Erica Lugo
Trainer
Steve Cook
Trainer