WATCH THIS:

"Parks and Recreation" (8 p.m., NBC): Big things are happening in the hourlong Season 6 finale. Leslie (Amy Poehler) makes a major decision about her future as she heads for a national parks conference in San Francisco with Ben and Andy (Adam Scott, Chris Pratt), where they rub elbows with First Lady Michelle Obama. Also among the guest stars: "Workaholics" funny guy (and Concord native) Blake Anderson.

  • "Bad Teacher" (9:31 p.m., CBS):

    The bad movie starring Cameron Diaz as a drastically unfit educator is now a TV show starring Ari Graynor, to whom we say: Good luck with that.

  • "Black Box" (10 p.m., ABC):

    This has the makings of one long head trip. It's a drama about a bipolar neuroscientist (Kelly Reilly) who struggles with her own demons while treating patients. Vanessa Redgrave plays her therapist. The title refers to the human brain -- the "ultimate mystery."

    Also on Thursday:

  • "The Big Bang Theory" (8 p.m., CBS)

  • "The Vampire Diaries" (8 p.m., The CW)

  • "Hell's Kitchen" (8 p.m., Fox)

  • "The Millers" (8:31 p.m., CBS)

  • "American Idol" (9 p.m., Fox)

  • "Reign" (9 p.m., The CW)

  • "Grey's Anatomy" (9 p.m., ABC)

  • "Elementary" (10 p.m., CBS)


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  • "Portlandia" (10 p.m., IFC)

  • "Vikings" (10 p.m., History Channel)

    Contact Chuck Barney at Facebook.com/BayAreaNewsGroup.ChuckBarney, or Twitter.com/chuckbarney