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    Critic’s corner: What’s on TV Tuesday night

    Library of Congress

    Pioneers of Television 8 p.m., Channel 2

    They weren’t doctors (or nurses) in real life, but they played them on TV. This installment looks back at famous fictional healers. Commentary comes from many of the actors who scrubbed for duty, including the hospital personnel from such shows as “ER” (Noah Wyle, Eriq LaSalle, Anthony Edwards), “St. Elsewhere” (Christina Pickles, Howie Mandel, Ed Begley Jr.), “Medical Center” (Chad Everett), and “Doctor Kildare’’ (Richard Chamberlain).

    Faking It 10:30 p.m., MTV


    For many real-life teens, coming out of the closet has many risks associated with it. On this new comedy, being mistakenly outed as lesbians ups the cool cred of BFFs Amy (Rita Volk, left) and Karma
    (Katie Stevens), who decide to play along to keep ahold of their newfound popularity. “I think teenagers these days have so many choices they have to make in terms of how they present themselves, that the line between who they are and who they want people to see them as is often very blurry,” executive producer Carter Covington told reporters at the Television Critics Association winter press tour. (“American Idol” fans, especially local ones, may remember Connecticut native Stevens from her stint on the singing competition during its ninth season.)

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    True Tori 10 p.m., Lifetime

    Spelling it out.

    The People’s Couch 10 p.m., Bravo

    Watching the watchers.


    Jim Henson’s Creature Shop Challenge 10 p.m., Syfy

    It’s not easy building green monsters.