Celebrity Wife Swap, 9 p.m., ABC

Shut the front door! My all-time favorite host of a clean-up-this-mess genre of cable TV, Niecy Nash, trades places with Tina Yother.

Custer’s Last Stand: American Experience, 8 p.m., PBS (check listings)

“A history of Lt. Col. George Armstrong Custer spans his charge at Gettysburg to his death on the battlefield of the Little Bighorn.” I have been to Little Big Horn. It is awesome.

Southland, 10 p.m., TNT

Dear Southland, I am so happy you are back. Love, Elissa Tonight, “Officer John Cooper returns to duty after recovering from surgery; Lydia helps a former informant; Ben, Sammy and Dewey chase an armed man into a school; Ben argues with an intense street cop.”