“The Biggest Loser” (8 p.m., NBC): Many pounds — and tears — have been shed.

“The Biggest Loser” (8 p.m., NBC): Many pounds — and tears — have been shed. Now it’s time to give our props to “The Biggest Loser.” Season 5 of the personal makeover show culminates with a final weigh-in as one of three finalists nabs the grand prize of $250,000 — much of which will surely be spent on a new wardrobe. “Deadliest Catch” (9 p.m., Discovery Channel): Going after crabs is as dangerous as ever.

“Desperate Landscapes” (9 p.m., DIY): Make your bland yard the object of neighbors’ envy.

“Deion & Pilar: Prime Time Love” (10:30 p.m., Oxygen): This new reality series focuses on former sports star Deion Sanders, his model-actress wife, and their five children who all live in a 40,000 square foot custom built mansion in the small town of Prosper, Texas.