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EpisodesNameDateRating
S1 EP1Episode 1: Pilot2004-10-19N/A
S1 EP2Episode 22004-10-26N/A
S1 EP3Episode 32004-11-09N/A
S1 EP4Episode 4: Red and Blue Teams Go to New Heights2004-11-16N/A
S1 EP5Episode 5: A Team Lightens Up Through Elimination2004-11-23N/A
S1 EP6Episode 6: Teams Trek to the Beach for a Challenge2004-11-30N/A
S1 EP7Episode 7: Biking Challenge2004-12-07N/A
S1 EP8Episode 8: Playing It Close to the Vest2004-12-14N/A
S1 EP9Episode 9: A Look Back Special2004-12-21N/A
S1 EP10Episode 10: Final Weigh-In At The Ranch2005-01-04N/A
S1 EP11Episode 11: Season Finale2005-01-11N/A
S1 EP12Episode 12: It Isn't Over Until It's Over2005-01-18N/A
S2 EP1Season Two Begins2005-09-13N/A
S2 EP2Straight and Narrow is Tough2005-09-20N/A
S2 EP3Hurt Bodies and Feelings2005-09-27N/A
S2 EP4What Happens in Vegas Buffets in Vegas2005-10-04N/A
S2 EP5Losing Teammates Instead of Weight Drags Down One Team2005-10-11N/A
S2 EP6High Anxiety2005-10-18N/A
S2 EP7Let's Do the Twist!2005-10-25N/A
S2 EP8Fancy Footwork from Pedicures to Pedicabs2005-11-01N/A
S2 EP9Jump Start2005-11-08N/A
S2 EP10Last One in the Pool is a Winner2005-11-15N/A
S2 EP11Scary Scale2005-11-22N/A
S2 EP12Season Two Finale2005-11-29N/A
S3 EP1Season Premiere2006-09-20N/A
S3 EP2The Biggest Loser Goes to the Beach2006-09-27N/A
S3 EP3Cruise Week2006-10-04N/A
S3 EP4Free Pass2006-10-11N/A
S3 EP5Gym Gone2006-10-18N/A
S3 EP6Tough Choices2006-10-25N/A
S3 EP7Duos2006-11-01N/A
S3 EP8They're Back2006-11-08N/A
S3 EP9Individuals2006-11-15N/A
S3 EP10All About the Holidays2006-11-29N/A
S3 EP11Back to School2006-12-06N/A
S3 EP12The Final Four2006-12-06N/A
S3 EP13Season Finale Live!2006-12-13N/A
S4 EP1Back to Basics2007-09-11N/A
S4 EP2The Secret Black Team is Revealed!2007-09-18N/A
S4 EP3The Pressure of Temptation2007-09-25N/A
S4 EP4Bidding Wars2007-10-02N/A
S4 EP5Surprise Getaway2007-10-09N/A
S4 EP6Lively Beach Competition2007-10-16N/A
S4 EP7Weigh-In Shocker2007-10-23N/A
S4 EP8Most Emotional Elimination So Far of the Season2007-10-30N/A
S4 EP9Biggest Losers Go Green2007-11-06N/A
S4 EP10A Taste of Home2007-11-13N/A
S4 EP11Memorable Makeovers2007-11-20N/A
S4 EP12Viewers Choose the Challenge2007-11-27N/A
S4 EP13A Slice of Temptation2007-12-04N/A
S4 EP14Five Remaining Players Compete for Spot on Finale2007-12-11N/A
S4 EP15Biggest Loser Revealed In Season Finale2007-12-18N/A
S5 EP1They Got Fat Together, Can They Get Thin Together?2008-01-01N/A
S5 EP2Contestants Face Barbecue Temptation and Giant Seesaw Challenge!2008-01-08N/A
S5 EP3Tensions Run High As This Week's Challenge Causes Rifts Among Players2008-01-15N/A
S5 EP4One Outcast Duo Squares Off Against All the Rest2008-01-22N/A
S5 EP5Surprise Escalator Challenge Changes the Game Forever2008-01-29N/A
S5 EP6Celebrity Chef Rocco DiSpirito Guest Stars2008-02-05N/A
S5 EP7Special Guest Appearance by Jillian's Mom2008-02-12N/A
S5 EP8Contestants Reunited With Loved Ones2008-02-19N/A
S5 EP9One Team Surprised With Trip to Vegas2008-02-26N/A
S5 EP10Contestants Tackle One of the Biggest Challenges in Show's History2008-03-04N/A
S5 EP11All Contestants Return to Ranch in Surprise Twist2008-03-11N/A
S5 EP12Contestants Made Over by Fashion Guru Tim Gunn2008-03-18N/A
S5 EP13Competition Heats Up With Only Six Contestants Left2008-03-25N/A
S5 EP14Last Five Contestants Get Surprise Trip to Australia2008-04-01N/A
S5 EP15Surprise Game-Changing Twist in Last Episode Before Live Finale2008-04-08N/A
S5 EP16"Biggest Loser" Revealed in Season Finale2008-04-15N/A
S6 EP1Husband-Wife and Parent-Child Teams2008-09-16N/A
S6 EP2Chef Rocco DiSpirito2008-09-23N/A
S6 EP3Grand Canyon2008-09-30N/A
S6 EP4Toughest Challenge Yet2008-10-07N/A
S6 EP5Surprising Weigh-In2008-10-08N/A
S6 EP6Longest Challenge Ever2008-10-14N/A
S6 EP7Unusual Workouts2008-10-21N/A
S6 EP8Record Weigh-In2008-10-28N/A
S6 EP9Week of Surprises2008-11-11N/A
S6 EP10'80s Week2008-11-18N/A
S6 EP11Thanksgiving week2008-11-25N/A
S6 EP12Makeover Episode2008-12-02N/A
S6 EP13Final Four2008-12-09N/A
S6 EP14Finale!2008-12-16N/A
S7 EP1Season Premiere2009-01-06N/A
S7 EP2Bob Freaks Out2009-01-13N/A
S7 EP3Temptations Suck2009-01-20N/A
S7 EP4Super Bowl2009-01-27N/A
S7 EP5Home Team Weigh-In2009-02-03N/A
S7 EP6100th Episode2009-02-10N/A
S7 EP7Gym Keys2009-02-17N/A
S7 EP8Black and Blue Part 12009-02-24N/A
S7 EP9Black and Blue Part 22009-02-25N/A
S7 EP10Chef Rocco DiSpirito2009-03-03N/A
S7 EP1124 Hour Fitness Relay Race2009-03-10N/A
S7 EP12Contestants Go Home for a Week and Complete Half-Marathons2009-03-17N/A
S7 EP13The Teams Split Up2009-03-24N/A
S7 EP14Blast from the Past2009-03-31N/A
S7 EP15Only One Vote2009-04-07N/A
S7 EP16The Makeover Episode2009-04-14N/A
S7 EP17Trivia Quiz2009-04-21N/A
S7 EP18Contestants Get to Train Their Trainers!2009-04-28N/A
S7 EP19Running a Full Marathon!2009-05-05N/A
S7 EP20Finale2009-05-12N/A
S7 EP21Finale Part 22009-05-12N/A
S8 EP1Week 12009-09-15N/A
S8 EP2Week 22009-09-22N/A
S8 EP3Week 32009-09-29N/A
S8 EP4Week 42009-10-06N/A
S8 EP5Week 52009-10-13N/A
S8 EP6Week 62009-10-20N/A
S8 EP7Week 72009-10-27N/A
S8 EP8Week 82009-11-03N/A
S8 EP9Week 92009-11-10N/A
S8 EP10Week 102009-11-17N/A
S8 EP11Week 112009-11-24N/A
S8 EP12Week 122009-12-01N/A
S8 EP13Finale (Week 13)2009-12-08N/A
S9 EP1Week 12010-01-05N/A
S9 EP2Week 22010-01-12N/A
S9 EP3Week 32010-01-19N/A
S9 EP4Week 42010-01-26N/A
S9 EP5Week 52010-02-02N/A
S9 EP6Week 62010-02-09N/A
S9 EP7Week 72010-03-02N/A
S9 EP8Week 82010-03-09N/A
S9 EP9Week 92010-03-16N/A
S9 EP10Week 102010-03-23N/A
S9 EP11Week 112010-03-30N/A
S9 EP12Week 122010-04-06N/A
S9 EP13Week 132010-04-13N/A
S9 EP14Week 142010-04-20N/A
S9 EP15Week 152010-04-27N/A
S9 EP16Week 162010-05-04N/A
S9 EP17Week 172010-05-11N/A
S9 EP18Week 182010-05-18N/A
S9 EP19Week 19 - Finale2010-05-25N/A
S10 EP1Week 12010-09-21N/A
S10 EP2Week 22010-09-28N/A
S10 EP3Week 32010-10-05N/A
S10 EP4Week 42010-10-12N/A
S10 EP5Week 52010-10-19N/A
S10 EP6Week 62010-10-26N/A
S10 EP7Week 72010-11-02N/A
S10 EP8Week 82010-11-09N/A
S10 EP9Week 92010-11-16N/A
S10 EP10Week 102010-11-23N/A
S10 EP11Week 112010-11-30N/A
S10 EP12Week 122010-12-07N/A
S10 EP13Week 132010-12-14N/A
S11 EP1Week 12011-01-04N/A
S11 EP2Week 22011-01-11N/A
S11 EP3Week 32011-01-18N/A
S11 EP4Week 42011-01-25N/A
S11 EP5Week 52011-02-01N/A
S11 EP6Week 62011-02-08N/A
S11 EP7Week 72011-02-15N/A
S11 EP8Week 82011-02-22N/A
S11 EP9Week 92011-03-01N/A
S11 EP10Week 102011-03-08N/A
S11 EP11Week 112011-03-15N/A
S11 EP12Week 122011-03-22N/A
S11 EP13Week 132011-03-29N/A
S11 EP14Week 142011-04-05N/A
S11 EP15Week 152011-04-12N/A
S11 EP16Week 162011-04-19N/A
S11 EP17Week 172011-04-26N/A
S11 EP18Week 18 "Makeover Week"2011-05-03N/A
S11 EP19Week 192011-05-10N/A
S11 EP20Week 202011-05-17N/A
S11 EP21Week 212011-05-24N/A
S12 EP1Week 12011-09-20N/A
S12 EP2Week 22011-09-27N/A
S12 EP3Week 32011-10-04N/A
S12 EP4Week 42011-10-11N/A
S12 EP5Week 52011-10-18N/A
S12 EP6Week 62011-10-25N/A
S12 EP7Week 72011-11-01N/A
S12 EP8Week 82011-11-08N/A
S12 EP9Week 92011-11-15N/A
S12 EP10Week 102011-11-22N/A
S12 EP11Week 11 - Makeover Week2011-11-29N/A
S12 EP12Week 122011-12-06N/A
S12 EP13Week 13 - Finale2011-12-13N/A
S13 EP1Week 12012-01-03N/A
S13 EP2Week 22012-01-10N/A
S13 EP3Week 32012-01-17N/A
S13 EP4Week 42012-01-24N/A
S13 EP5Week 52012-01-31N/A
S13 EP6Week 62012-02-07N/A
S13 EP7Week 72012-02-14N/A
S13 EP8Week 82012-02-21N/A
S13 EP9Week 92012-02-28N/A
S13 EP10Week 102012-03-06N/A
S13 EP11Week 112012-03-13N/A
S13 EP12Week 122012-03-20N/A
S13 EP13Week 132012-03-27N/A
S13 EP14Week 142012-04-03N/A
S13 EP15Week 152012-04-10N/A
S13 EP16Week 162012-04-17N/A
S13 EP17Week 172012-04-24N/A
S13 EP18Week 18 - Finale2012-05-01N/A
S14 EP1We're Back ... And So Is Jillian2013-01-06N/A
S14 EP2Keep Moving2013-01-07N/A
S14 EP3Cut The Junk2013-01-14N/A
S14 EP4Pay It Forward2013-01-21N/A
S14 EP5Waist & Money2013-01-28N/A
S14 EP6Lead By Example2013-02-04N/A
S14 EP7Tough Love2013-02-11N/A
S14 EP8Work Together2013-02-18N/A
S14 EP9Face Your Fears2013-02-25N/A
S14 EP10Make a Difference (Makeover Week)2013-03-04N/A
S14 EP11Down To The Wire2013-03-11N/A
S14 EP12Live Finale2013-03-18N/A
S15 EP1Second Chances2013-10-15N/A
S15 EP2A Game of Chance2013-10-22N/A
S15 EP3The Auction2013-10-29N/A
S15 EP4Trick or Treat2013-11-05N/A
S15 EP5The Cook-Off2013-11-12N/A
S15 EP6Remember Who You Are2013-11-19N/A
S15 EP7Thanksgiving2013-11-26N/A
S15 EP8Take a Trainer Home2013-12-03N/A
S15 EP9Work Week2013-12-10N/A
S15 EP10Down to Singles2013-12-17N/A
S15 EP11Who Gets a Second Chance Back?2014-01-07N/A
S15 EP12Winter Olympics2014-01-14N/A
S15 EP13Makeover Week2014-01-21N/A
S15 EP14Triathlon2014-01-28N/A
S15 EP15Finale2014-02-04N/A
S16 EP1Opening Day2014-09-11N/A
S16 EP2The Knockout2014-09-18N/A
S16 EP3Double Header2014-09-25N/A
S16 EP4The Lottery2014-10-02N/A
S16 EP5Sidelined2014-10-09N/A
S16 EP6The Tailgate2014-10-16N/A
S16 EP7The Drop2014-10-23N/A
S16 EP8Penalty Box2014-10-30N/A
S16 EP9Yes, Coach!2014-11-06N/A
S16 EP10Free Agents2014-11-13N/A
S16 EP11No 'I' in Team2014-11-20N/A
S16 EP12The Playoffs2014-12-11N/A
S16 EP13Kauai Part 12014-12-18N/A
S16 EP14Kauai Part 22015-01-01N/A
S16 EP15Makeover Week2015-01-08N/A
S16 EP16The Comeback2015-01-15N/A
S16 EP17End Zone2015-01-22N/A
S16 EP18Live Finale2015-01-29N/A
S17 EP1Money Hungry2016-01-04N/A
S17 EP2Taste Test / Keep On Truckin'2016-01-11N/A
S17 EP3Hooked On 'Tronics / The Big Switch2016-01-18N/A
S17 EP4Ready? Set. Auction!; Ship Shape2016-01-25N/A
S17 EP5Homeward Bound; Real World Problems2016-02-01N/A
S17 EP6Makeover Week2016-02-08N/A
S17 EP7I Got The Power/The Final Cut2016-02-15N/A
S17 EP8Live Finale2016-02-22N/A
S18 EP1Time For Change2020-01-28N/A
S18 EP2A Big Loss2020-02-04N/A
S18 EP3Supporting the Team2020-02-11N/A
S18 EP4Messages from Home2020-02-18N/A
S18 EP5Diving In2020-02-25N/A
S18 EP6Overcoming Obstacles2020-03-03N/A
S18 EP7Going Solo2020-03-10N/A
S18 EP8Boosting Morale2020-03-17N/A
S18 EP9Final Four2020-03-24N/A
S18 EP10Finale2020-03-31N/A