Watch The Biggest Loser (2004) Online Free
Episodes
Season 1 12 episodes
- E01 Episode 1: Pilot
- E02 Episode 2
- E03 Episode 3
- E04 Episode 4: Red and Blue Teams Go to New Heights
- E05 Episode 5: A Team Lightens Up Through Elimination
- E06 Episode 6: Teams Trek to the Beach for a Challenge
- E07 Episode 7: Biking Challenge
- E08 Episode 8: Playing It Close to the Vest
- E09 Episode 9: A Look Back Special
- E10 Episode 10: Final Weigh-In At The Ranch
- E11 Episode 11: Season Finale
- E12 Episode 12: It Isn't Over Until It's Over
Season 2 12 episodes
- E01 Season Two Begins
- E02 Straight and Narrow is Tough
- E03 Hurt Bodies and Feelings
- E04 What Happens in Vegas Buffets in Vegas
- E05 Losing Teammates Instead of Weight Drags Down One Team
- E06 High Anxiety
- E07 Let's Do the Twist!
- E08 Fancy Footwork from Pedicures to Pedicabs
- E09 Jump Start
- E10 Last One in the Pool is a Winner
- E11 Scary Scale
- E12 Season Two Finale
Season 3 13 episodes
Season 4 15 episodes
- E01 Back to Basics
- E02 The Secret Black Team is Revealed!
- E03 The Pressure of Temptation
- E04 Bidding Wars
- E05 Surprise Getaway
- E06 Lively Beach Competition
- E07 Weigh-In Shocker
- E08 Most Emotional Elimination So Far of the Season
- E09 Biggest Losers Go Green
- E10 A Taste of Home
- E11 Memorable Makeovers
- E12 Viewers Choose the Challenge
- E13 A Slice of Temptation
- E14 Five Remaining Players Compete for Spot on Finale
- E15 "Biggest Loser" Revealed in Season Finale!
Season 5 16 episodes
- E01 They Got Fat Together, Can They Get Thin Together?
- E02 Contestants Face Barbecue Temptation and Giant Seesaw Challenge!
- E03 Tensions Run High As This Week's Challenge Causes Rifts Among Players
- E04 One Outcast Duo Squares Off Against All the Rest
- E05 Surprise Escalator Challenge Changes the Game Forever
- E06 Celebrity Chef Rocco DiSpirito Guest Stars
- E07 Special Guest Appearance by Jillian's Mom
- E08 Contestants Reunited With Loved Ones
- E09 One Team Surprised With Trip to Vegas
- E10 Contestants Tackle One of the Biggest Challenges in Show's History
- E11 All Contestants Return to Ranch in Surprise Twist
- E12 Contestants Made Over by Fashion Guru Tim Gunn
- E13 Competition Heats Up With Only Six Contestants Left
- E14 Last Five Contestants Get Surprise Trip to Australia
- E15 Surprise Game-Changing Twist in Last Episode Before Live Finale
- E16 "Biggest Loser" Revealed in Season Finale
Season 6 14 episodes
- E01 Husband-Wife and Parent-Child Teams
- E02 Chef Rocco DiSpirito
- E03 Grand Canyon
- E04 Toughest Challenge Yet
- E05 Surprising Weigh-In
- E06 Longest Challenge Ever
- E07 Unusual Workouts
- E08 Record-Breaking Weigh-In
- E09 Week of Surprises
- E10 '80s Week
- E11 Thanksgiving week
- E12 Makeover Episode
- E13 Final Four
- E14 Finale!
Season 7 21 episodes
- E01 Season Premiere
- E02 Bob goes angry
- E03 Temptations suck
- E04 Super Bowl
- E05 Home Team Weigh-In
- E06 The Biggest Loser Season 7 Episode 6
- E07 Gym Keys
- E08 Black and Blue Part 1
- E09 Black and Blue Part 2
- E10 Chef Rocco DiSpirito
- E11 24 Hour Fitness Relay Race
- E12 Contestants Go Home for a Week and Complete Half-Marathons
- E13 The Teams Split Up
- E14 Blast from the Past
- E15 Only One Vote
- E16 The Makeover Episode
- E17 Trivia Quiz
- E18 Contestants Get to Train Their Trainers!
- E19 Running a Full Marathon!
- E20 Finale
- E21 Finale Part 2
Season 8 13 episodes
Season 9 19 episodes
- E01 Week One
- E02 The Biggest Loser Season 9 - Week Two
- E03 Week 3
- E04 Season 9, Episode 4
- E05 Season 9, Episode 5
- E06 Season 9, Episode 6
- E07 Season 9, Episode 7
- E08 Season 9, Episode 8
- E09 Season 9, Episode 9
- E10 Week 10
- E11 Season 9, Episode 11
- E12 Week 12
- E13 Season 9, Episode 13
- E14 Season 9, Episode 14
- E15 Season 9, Episode 15
- E16 Season 9, Episode 16
- E17 Season 9, Episode 17
- E18 Season 9, Episode 18
- E19 Season 9 Finale
Season 10 13 episodes
Season 11 21 episodes
Season 12 13 episodes
Season 13 18 episodes
Season 14 12 episodes
Season 15 15 episodes
- E01 The Biggest Loser Season 15 Episode 1
- E02 A Game of Chance
- E03 The Auction
- E04 Trick or Treat
- E05 The Cook-Off
- E06 Episode 6
- E07 Thanksgiving
- E08 Take a Trainer Home
- E09 Workplace Obesity
- E10 Episode 10
- E11 Who Gets a Second Chance Back?
- E12 Winter Olympics
- E13 Makeover Week
- E14 Triathlon
- E15 Finale
Season 16 18 episodes
Season 17 8 episodes
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