Sgt. Jeffords and Gina attempt to start their new extreme diet in the latest episode of “Brooklyn Nine-Nine.” (Eddy Chen/FOX)

The “Glee” (Fox at 8 p.m.) kids are heading to Nationals this week to face “Throat Explosion,” their fiercest competition to date, and perform in Finn’s memory with two special guests.

Blind auditions continue on “The Voice” (NBC at 8).

To get close to Ali’s mom, who they think could be hiding some secrets, the girls of “Pretty Little Liars” (ABC Family at 8) take part in a charity bridal show.

SERIES PREMIERE: Filmmaker Robert Rodriguez turns his 1996 shlock-horror flick into the first original series for El Rey, a new network aimed at English-speaking Latino households, with “From Dusk Til Dawn: The Series” (El Rey at 9).

SERIES PREMIERE: The two-part series “24 Hours on Earth” (BBC America at 9) travels moment by moment through a virtual day and celebrates the most extraordinary and spectacular examples of how animals and plants are adapted to exploit the 24-hour cycle.

RETURNING SHOW: “The Real Housewives of New York City” (Bravo at 9) is back for its sixth season with Aviva, Sonja, Carole, Ramona and Heather returning for another round and newbie Kristen Taekman, a 36-year-old model and creator of a company that makes high-end greeting-card boxes, joining the cast.

Michael Murphy hosts “America’s Wild West” (WETA at 9), a collection of highlights from the PBS “American Experience” series that all have to do with the American West. Includes excerpts from Annie Oakley, Billy the Kid and Butch Cassidy documentaries.

Charles asks Jake to be the best man as his wedding on “Brooklyn Nine-Nine” (Fox at 9:30), while Terry, Amy and Gina start an extreme diet that leads to problems.

SERIES PREMIERE: Reality show “Chrisley Knows Best” (USA at 10) follows Atlanta-based self-made multimillionaire Todd Chrisley, his devoted wife Julie and their five children who live a seemingly picture-perfect Southern life with everything money can buy. The show premieres with two 30-minute episodes.

Actor Tyler Perry and comedian Billy Eichner are on “The Tonight Show Starring Jimmy Fallon” (NBC at 11:35), with music from Juanes.

Actors Jason Bateman and Miles Teller stop by the “Late Show With David Letterman” (CBS at 11:35), with a performance from country artist Gary Allan.

Actress Rosario Dawson and Gov. Rick Perry (R-Tex.) come to “Jimmy Kimmel Live” (ABC at 11:35), with a musical performance from Aloe Blacc at SXSW and Jimmy Vaughn will be sitting with the house band.

Rachel Lubitz