What to Watch Tonight: Big Bang Pits Newhart vs. Nye, Groban Is Crazy, Jafar's Backstory and More

The Big Bang TheoryOn TV this Thursday: Two icons visit The Big Bang Theory, Josh Groban is a Crazy one, Olivia must make a Scandalous decision, the Bluths go Inside the Actor’s Studio and more. 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 Inside the Actor’s Studio (Bravo) | You’ll have made a huge mistake if you don’t tune in to see Warden Stefan Gentles Q&A his former inmates and the rest of the Arrested Development cast.

8 pm The Big Bang Theory (CBS) | Angry that Professor Proton (returning Emmy-winning guest star Bob Newhart) asked Leonard for advice instead of him, Sheldon befriends his childhood hero’s rival — Bill Nye the Science Guy.

8 pm The Vampire Diaries (CW) | Tessa (guest-star Janina Gavankar, True Blood) confidently tells Stefan her next move, and Damon is shocked when he discovers the secret to the mysterious woman’s plan.

8 pm Once Upon a Time in Wonderland (ABC) | Flashbacks reveal Jafar’s origins and what he wants from Cyrus, while in Wonderland the sorcerer plots to kill the Knave, putting the Red Queen in a difficult position. Lost‘s Zuleikha Robinson guest-stars.

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9 pm The Returned (Sundance) | Simon approaches his former fiancée, while Camille is unable to fit back in with her family. The returned begin to realize they’re not the only ones who have been brought back.

9 pm White Collar (USA Network) | Neal goes undercover to investigate a psychiatrist (Elizabeth Marvel, Person of Interest) who may be manipulating her patients into committing crimes.

9 pm The Crazy Ones (CBS) | Josh Groban, king of ballads and hilarious cameos (see: Crazy Stupid Love, The Office), guest-stars as Sydney’s infatuated former co-worker who writes a stalkery song about her. “You raise me up/So I can look into your window…

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10 pm Covert Affairs (USA Network) | Annie heads to New York to find evidence of a crime.

10 pm Scandal (ABC) | Olivia must make a difficult decision that will affect all of her relationships in the White House. Meh, there’s nothing a big glass of pinot can’t solve!

10 pm Elementary (CBS) | When Mycroft (Rhys Ifans) comes to NYC to solicit help with a case involving his former fiancée, Sherlock has trouble accepting his brother and Joan’s relationship.

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