"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: