All the cable news networks, including MSNBC, CNN, Fox News Channel, Fox Business Network and C-SPAN, will provide coverage of the Florida GOP presidential primary; PBS breaks in with a half-hour special at 11 p.m.

During the Michael Jackson-themed “Glee” (Fox at 8) episode, the New Directions-Warblers rivalry intensifies as both groups practice for the regional competition.

On “Ringer” (CW at 9), which returns from a two-month hiatus, Siobhan is furious to discover that her twin, Bridget, has seamlessly taken over Siobhan’s life in New York without anyone noticing.

Pro wrestler Mick Foley and actor Antonio Sabato Jr. trade lives on the season finale of “Celebrity Wife Swap” (ABC at 9) as Sabato’s “clean-freak” fiancee lands at the laid-back Foley household and vice versa.

Nick’s new fling Julia declines to put a label on their fledgling relationship on “New Girl” (Fox at 9); meanwhile, Nick’s roommate wants Julia to help him get out of a parking ticket even though Nick is having a panic attack.

Keegan-Michael Key, center, and Jordan Peele, right, star in a new sketch comedy series “Key & Peele,” in which they poke fun at everyone (and everything) from President Obama to Lil Wayne. (Mike Yarish)

TLC heads across the pond for two new series Tuesday night. On “Sorority Girls” (at 9), a group of Sigma Gamma sorority sisters travels to Leeds, England, to introduce young women to Greek life and recruit pledges. And at 10, “Undercover Princes” (at 10) features single princes going “undercover” as regular, everyday guys in Britain in order to find a soulmate who’s looking for love, not just a tiara.

Comedian Daniel Tosh returns for Season 4 of “Tosh.0” (Comedy Central at 10) sporting a new wardrobe and ruminating about who could possibly replace him.

Keegan-Michael Key and Jordan Peele star in a new sketch comedy series “Key & Peele” (Comedy Central at 10:30) in which they poke fun at everyone (and everything) from President Obama to Lil Wayne.

First lady Michelle Obama is a guest on “The Tonight Show With Jay Leno” (NBC at 11:35) along with actor Mark Harmon and musical guest Imelda May.

“Late Show With David Letterman” (CBS at 11:35) hosts actor Bill Murray and a performance by Girls’ Generation.

Emily Yahr