“Biggest Loser: Couples” (8 p.m., NBC): Contestants turn the tables on their trainers.


April 28, 2009 at 12:00a.m.

“Biggest Loser: Couples” (8 p.m., NBC): Contestants turn the tables on their trainers.

“Fringe” (9 p.m., Fox): “Fringe,” it seems, is in the running for the grossest show on television. Tonight, Olivia and company investigate a case involving severely mutilated bodies drained of their spinal fluid. Finish your dinner early.

“Law & Order: Special Victims Unit” (10 p.m., NBC): Hilary Duff drops by for a guest-star stint on “Law & Order: Special Victims Unit.” She plays the irresponsible young mother of a 2-year-old girl who has been reported missing.