TV highlights: Ink Master returns for Season 7 on Spike

(All times Eastern.)

The "NCIS" (CBS at 8 p.m.) team is forced to get back to work after finding a series of errors in what they initially thought was a routine — and closed — investigation.

FINALE WATCH: In the one-hour finale of "The Muppets" (ABC at 8), Miss Piggy breaks a leg, literally, at a dance rehearsal, so Kermit and the gang broadcast her late-night show from her hospital room. After Miss Piggy leaves the hospital, she and Kermit reevaluate their relationship with some some help from musician Jack White.

SERIES PREMIERE: This week marks the launch of Viceland (formerly H2), Vice's 24-hour cable channel. Offerings include "Noisey" (Viceland at 10), exploring music scenes in various U.S. cities, and "Weediquette" (Viceland at 11), which, in its first episode, introduces parents using potent marijuana oils to treat their children's life-threatening illnesses.

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After Emily's close call, the Liars start to take the stalker's threats more seriously on "Pretty Little Liars" (Freeform at 8). Meanwhile, Caleb deals with the fallout of taking the blame for the campaign leak.

Julianna Margulies, author Azar Nafisi and chef Lidia Bastianich study their family histories on "Finding Your Roots" (WETA and MPT at 8).

Amy and Jake house-sit for Holt on "Brooklyn Nine-Nine" (Fox at 9) but panic when Holt's dog, Cheddar, goes missing. Meanwhile, a budding love affair between Adrian and Rosa proves disruptive to the precinct.

Johnnie Cochran and Christopher Darden face off in court as the trial begins on "The People v. O.J. Simpson: American Crime Story" (FX at 10).

RETURNING SHOW: Season 7 of "Ink Master" (Spike at 10) pits new contestants against fan favorites from previous seasons in a competition for a $100,000 grand prize, an editorial feature in Inked magazine and the coveted Ink Master title. Rocker Dave Navarro returns as host.

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Actress Christina Hendricks and model-author Chrissy Teigen will be on "The Late Show With Stephen Colbert" (CBS at 11:35), along with Adam Savage of "Mythbusters."

"Jimmy Kimmel Live" (ABC at 11:35) hosts actors Will Forte and Ross Marquand. Miike Snow is the musical guest.

Actors Margot Robbie and Michael McKean visit "The Tonight Show Starring Jimmy Fallon" (NBC at 11:35), along with Kevin Delaney, director of visitor experience at the Museum of Discovery in Arkansas. Jimmy Greene sits in with the Roots.

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