What to Watch Thursday: Parks and Rec Finale, Mycroft Holmes Returns, Two Premieres and More

Parks and Recreation - Season 6On TV this first night of May SweepsParks and Rec ends its season with a big decision, The Big Bang Theory tries to be spontaneous,  Reign  gets devastating news and CBS’ Bad Teacher labors to have some class. As a supplement to TVLine’s original features (linked within), here are 10 programs to keep on your radar.

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8 pm The Vampire Diaries (The CW) | Through flashbacks to election night in 1960, Enzo finds out what happened to his long-lost love.

8 pm Parks and Recreation (NBC) | One-hour season finale: Leslie, Ben and Andy head to San Francisco for a National Parks Conference; Leslie makes a big decision about her future. (Get scoop and more scoop.)

8 pm The Big Bang Theory (CBS) | When Leonard reinstates “Anything Can Happen Thursday,” Sheldon tries to be spontaneous but it creates unexpected friction between Penny, Amy and Bernadette.

8:30 pm The Millers (CBS) | When Nathan pitches a children’s show based on Tom’s imaginary comic book to his boss, Tom has an unfavorable reaction to the tweaks that are made.

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9 pm Saturday Night Live: SNL Digital Shorts (NBC) | The best of SNL shorts from 39 years are presented, including favorites like “Lazy Sunday,” “Wes Anderson Horror Trailer,” “United Way” and more.

9 pm Grey’s Anatomy (ABC) | Jackson must deliver some unsettling news to the doctors.

9 pm Reign (The CW) | Mary and Francis must decide between putting their countries or marriage first when Mary’s Uncle, the Duke of Guise, arrives in France with devastating news. 

9:30 pm Bad Teacher (CBS) | Series premiere: Ari Graynor (Fringe) stars as a former trophy wife who poses as a teacher at an upscale elementary school in an attempt to meet rich, single fathers and return to her lavish lifestyle. Rounding out the cast are Kristin Davis (Sex and the City), David Alan Grier (In Living Color), Sara Gilbert (Roseanne), Ryan Hansen (Veronica Mars) and Sara Rodier (The Future).

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10 pm Black Box (ABC) | Series premiere: Kelly Reilly (Sherlock Holmes) stars as Dr. Catherine Black, a world-renowned neurologist who will be challenged each week to diagnose and treat rare and bizarre cases — all while hiding that she’s bipolar. The cast also includes Vanessa Redgrave (Nip/Tuck), Terry Kinney (Oz) and Laura Fraser (Breaking Bad).

10 pm Elementary (CBS) | Holmes’ brother Mycroft makes a surprise return to New York and his motivations create tension between Holmes and Watson.

Hit the comments with your must-see picks from tonight’s lineup!