Mad Men (10pm, AMC) - At long last, the first part of the final season of “Mad Men” returns tonight (seven episodes now and the final seven next year), with the usual cryptic plot clues available for dissemination: Don makes a new friend, Joan meets a client for drinks, Peggy hears some impressive new work and Roger experiences a strange phone call. (Hint: The first and third of those items turn out to be the most interesting.) Vague or not, we know we’re all tuning in.
Also on tonight . . .
The Good Wife (9pm, CBS) - Alicia and Diane consider merging firms in the wake of Will’s death, even as they take opposite sides in a contentious divorce case. Meanwhile, Alicia offers her assistance to Finn when it becomes clear that the State’s Attorney is looking for a scapegoat in the Jeffrey Grant Case.
MTV Movie Awards (9pm, MTV, VH1) - Hosted by Conan O’Brien with presenters Adrian Grenier and pretty much everyone else from “Entourage.”
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Oprah Prime (9pm, OWN) - Oprah talks to singer Pharrell Williams.
TURN (9pm, AMC) - In the second episode of this new Revolutionary War drama, the murder of a royal officer has Abe seeking the killer’s identity before Anna is framed for the crime.
Nurse Jackie (9pm, Showtime) - In the Season 6 premiere, Jackie is using drugs again but covers it up by attending NA meetings and regularly hitting the gym, where she gets pills from the locker-room towel girl. Meanwhile, Jackie is assigned to shadow Dr. Roman at the hospital, and she bonds with an outspoken Southern woman who agrees to become her sponsor.
Californication (9:30pm, Showtime) - Season 7 starts, promising lots more “ugh,” “sigh” and “gross.”
Years of Living Dangerously (10pm, Showtime) - A new documentary series debuts, featuring celebrities and journalists exploring climate change around the world. The first episode has Harrison Ford investigating deforestation in Indonesia, Don Cheadle examining drought in Texas and Thomas Friedman reporting on stress caused by climate change in Syria.
The Bletchley Circle (10pm, UNC-TV) - Season 2 opens with the former WWII code breakers trying to prove the innocence of a former colleague who’s accused of murder. It’s a very good series which, unfortunately, is on opposite “Mad Men.” But this is why we have DVRs.