The Biggest Loser (7 p.m., Ch. 5): The contestants swap trainers and search for weight plates in a giant mud pit.
Raising Hope (7 p.m., Ch. 13): When Sabrina is arrested, one of the jail attendants (Katy Perry) commits to making her imprisonment as awful as possible.
Cougar Town (7:30 p.m., Ch. 4): Bobby takes an interest in Travis' professor, but Travis refuses to introduce them.
I Hate My Teenage Daughter (7:30 p.m., Ch. 13): A night-school teacher (Mark Consuelos) takes an interest in Annie.
The River (8 p.m., Ch. 4): The Magus crew finds Emmet's camera bag containing tapes, leading it further into the Amazon.
Decision 2012 (8 p.m., Ch. 5): Primary results are revealed and discussed.
New Girl (8 p.m., Ch. 13): When Jess learns that injured Nick doesn't have insurance, she brings him to her friend — who is a gynecologist.
Breaking In (8:30 p.m., Ch. 13): When Oz sells the company to a corporate conglomerate, the brash head of the business and her bad-tempered assistant turn the office upside down.
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