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The Biggest Loser - Seasons

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Season 1

NBC United States, 2004 - 2005


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Season 2

NBC United States, 2005


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Season 3

NBC United States, 2006


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Season 4

NBC United States, 2007


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Season 5

NBC United States, 2008


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Season 6

NBC United States, 2008


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Season 7

NBC United States, 2009


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Season 8

NBC United States, 2009


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Season 9

NBC United States, 2010


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Season 10

NBC United States, 2010


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Season 11

NBC United States, 2011


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Season 12

NBC United States, 2011


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Season 13

NBC United States, 2012


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Season 14

NBC United States, 2013


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Season 15

NBC United States, 2013 - 2014


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Season 16

NBC United States, 2014 - 2015


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Season 17

NBC United States, 2016


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Season 18

USA Network United States, 2020


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