Season Four of The Biggest Loser premiered on September 11, 2007.
Episodes
| # |
#
|
Title
|
|
|
Airdate
|
|
|
|
| S3 |
SP
|
Did They Keep the Weight Off?
|
|
|
September 4, 2007
|
|
|
|
| 36 |
1
|
Episode 401A/401B
|
|
|
September 11, 2007
|
|
|
|
| 37 |
2
|
Episode 402A/402B
|
|
|
September 18, 2007
|
|
|
|
| 38 |
3
|
Episode 403
|
|
|
September 25, 2007
|
|
|
|
| 39 |
4
|
Episode 404
|
|
|
October 2, 2007
|
|
|
|
| 40 |
5
|
Episode 405
|
|
|
October 9, 2007
|
|
|
|
| 41 |
6
|
Episode 406
|
|
|
October 16, 2007
|
|
|
|
| 42 |
7
|
Episode 407
|
|
|
October 23, 2007
|
|
|
|
| 43 |
8
|
Episode 408
|
|
|
October 30, 2007
|
|
|
|
| 44 |
9
|
Episode 409A/409B
|
|
|
November 6, 2007
|
|
|
|
| 45 |
10
|
Episode 410
|
|
|
November 13, 2007
|
|
|
|
| 46 |
11
|
Episode 411A/411B
|
|
|
November 20, 2007
|
|
|
|
| 47 |
12
|
Episode 412A/412B
|
|
|
November 27, 2007
|
|
|
|
| 48 |
13
|
Episode 413A/413B
|
|
|
December 4, 2007
|
|
|
|
| 49 |
14
|
Episode 414
|
|
|
December 11, 2007
|
|
|
|
| 50 |
15
|
Episode 415A/415B
|
|
|
December 18, 2007
|
|
|
|
