RETURNING SHOW: “Transformation specialist” Chris Powell helps people who struggle with obesity learn to adapt healthier lifestyles on the third season of “Extreme Weight Loss” (ABC at 8 p.m.). He starts with 23-year-old twins David and Rebecca of Wisconsin, who grew up using food to cope with a difficult childhood.

Carole King was recently honored with the Gershwin Prize for Popular Song at the Library of Congress, and “In Performance at the White House” (WETA and MPT at 8) broadcasts the ceremony. President Obama presents the award, and the show features performances by James Taylor, Billy Joel, Trisha Yearwood, Gloria Estefan and others.

SERIES PREMIERE: “Family S.O.S. With Jo Frost” (TLC at 9), in which the former “Supernanny” helps families in crisis, is reviewed by Hank Stuever on this page.

SERIES PREMIERE: Tyler Perry kicks off his reign at OWN with several new shows, starting with “The Haves and the Have Nots” (OWN at 9), about the complicated dynamic between a wealthy family living in Savannah, Ga., and the hired help who work in its mansion. In the opener, the Cryer family’s dad faces a blackmail situation when he realizes his daughter has become friends with his mistress.

The top eight singers performed Monday, and now two more will be cut on “The Voice” (NBC at 9), as the audience decides who’s the favorite.

FINALE WATCH: On the last episode of “Constitution USA With Peter Sagal” (WETA and MPT at 9), in which Sagal takes a road trip across the country to see how the Constitution is working today, he looks the longevity of the decisions made by the nation’s founders.

FINALE WATCH: The Dana Delany-as-medical-examiner drama “Body of Proof” (ABC at 10) hung in there for three seasons of mediocre ratings but was canceled by ABC this year. In the series finale, Megan learns some disturbing details about the death of her father, who she thought had committed suicide.

There’s nothing the pop-culture sphere delights in more than when two of its own turn on each other, and the one-hour special “Bigger, Badder Celebrity Feuds” (E! at 10) looks at the Hatfields and McCoys of Hollywood, including Chris Brown vs. Frank Ocean and Kelsey Grammer vs. his ex-wife, Camille.

Emily Yahr