The third installment of “Pioneers of Television” (MPT and WETA at 8 p.m.) traces the history of people of color on American television — from the mid-1960s breakthroughs of Diahann Carroll and Bill Cosby to Latino landmarks like Desi Arnaz on “I Love Lucy” and Edward James Olmos on “Miami Vice.” Also featured are Asian Americans such as George Takei of “Star Trek” fame, who recalls his childhood in a Japanese American internment camp.

In a sign of the times, Rachel looks to TV to gain more fame on “Glee” (Fox at 8), but it could end up jeopardizing her career as an actress and lead in “Funny Girl.”

The remaining contestants face a live double elimination on “The Voice” (NBC at 8).

The “New Girl” (Fox at 9) gang joins forces to block a sabotage attempt on Jess’s first middle school dance, an attempt she believes was started by the biology teacher.

The documentary “Ruben Salazar: Man in the Middle” (MPT and WETA at 9) recalls the life and mysterious death of Los Angeles Times journalist Salazar, who chronicled the Chicano rights movement in the 1960s.

To get closer to her, Danny offers to sell Mindy an apartment in his building, but then she starts dating Charlie (played by guest star Tim Daly) on “The Mindy Project” (Fox at 9:30).

“Frontline” (MPT and WETA at 10) wraps up its double feature on the state of America’s prison system with a look at the Beecher Terrace housing complex in Louisville, where a disproportionate number of residents have been incarcerated, and we follow four residents as they cycle in and out of custody.

SERIES PREMIERE: The USA network’s second original comedy series “Playing House” (USA at 10) stars comedians Jessica St. Clair and Lennon Parham as Maggie Caruso and Emma Crawford, two best friends struggling with the imminent future, which happens to include a baby for Maggie.

Decina is on the hunt for Reese and Shaw on “Person of Interest” (CBS at 10), and Greer uses Finch’s real Kryptonite — his former fiancee — to lure him out of hiding.

Actors Diane Keaton and Dane DeHaan are on “The Tonight Show Starring Jimmy Fallon” (NBC at 11:35), with music from David Byrne and British singer-songwriter Daley.

Actress Lucy Liu comes to “Late Show With David Letterman” (CBS at 11:35), along with some stupid pet tricks and a musical performance from Ziggy Marley.

“Modern Family” actors Eric Stonestreet and Jesse Tyler Ferguson stop by “Jimmy Kimmel Live” (ABC at 11:35), with television broadcaster Robin Roberts.

Rachel Lubitz