For Wednesday, Dec. 27, 2017.TONIGHT’S MUST-SEE: “The Librarians,” 8 and 9 p.m., TNT, repeating at 10 and 11.Most shows are on a holiday break now, offering reruns or disappearing entirely.

“The Wall,” 8 p.m., NBC. Two brothers – one a college professor, the other a Washington, D.C. cop – tackle the high-tech game show.

“Dolly Parton’s Christmas of Many Colors”, 9-11 p.m., NBC. As a sequel to her “Coat of Many Colors” film, Parton narrates another story from her childhood.

“Modern Family,” 9 p.m., ABC. Phil and Claire start to feel Alex is self-sufficient in college.

“Match Game,” 10 p.m., ABC. Starting next week, this loose-spirited game show – with Alec Baldwin hosting – will have new episodes at 10 p.m. Wednesdays.

Three Marvel action films collide: Syfy has “Thor” at 7:30 p.m.; FX has “The Wolverine” at 6 p.m. and “X-Men: Days of Future Past” at 9.