Leonard feels threatened after hearing about Penny's study partner at school, while Howard and Raj become determined to find out one of Sheldon's secrets.



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Howard has noticed that Sheldon disappears for exactly twenty minutes every afternoon at exactly the same time without telling anyone where he's going or what he's doing. The twenty minutes is listed as free in his calendar. And when Howard and Raj ask him indirectly about that twenty minutes, he evades the question. So Howard and Raj go on a single minded mission to find out where he's going and what he's doing that is so secretive. They try to piece together the evidence they find, but will it lead them to an answer? Leonard isn't joining them in this quest since he's got his own mission. Penny has befriended Cole, a British exchange student in her History class who Leonard is certain is trying to hit on her. Although trusting her somewhat, jealous Leonard does whatever he can to stop Cole indirectly from being her friend (which he equates to hitting on her) so that Penny won't even be tempted. But Leonard himself may be tempted from who to him is an unlikely source. Written by Huggo

Plot Summary | Plot Synopsis


Comedy | Romance


TV-PG | See all certifications »




Release Date:

15 November 2012 (USA)  »

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Aspect Ratio:

16:9 HD
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Did You Know?


In the scene where Leonard is sitting in cafeteria talking to Alex about Penny, Alex's shirt is on inside out. The piping on the arms is showing. See more »


In the cafeteria Leonard says that Sheldon goes to the bathroom at 8.00 a.m with optional follow up at 1.45 however in s2, e23 "The Monopolar Expedition" Sheldon says that everyone at the university knows that he has breakfast at 8.00 a.m and moves his bowels at 8.20. See more »


Alex Jensen: Oh hi, Dr. Hofstader.
Leonard Hofstadter: Oh, hey, Alex. And call me, Leonard. Dr. Hofstadter is my father. And my mother. And my sister. And our cat. Although I'm pretty sure that Dr. "Boots" Hofstader's degree is honorary.
Alex Jensen: May I join you, Leonard?
Leonard Hofstadter: Sure. Um, let me ask you something. My girlfriend knows this guy at school. He's got an English accent.
Alex Jensen: Oo, I love English accents.
Leonard Hofstadter: Yea, you all do. Anyway, I feel like he's hitting on her. She says he's just being nice and I should trust her.
Alex Jensen: It's probably harmless. ...
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Crazy Credits


I got nothin'. See more »


References Star Wars: Episode IV - A New Hope (1977) See more »


Big Bang Theory Theme
Composed and Performed by Barenaked Ladies
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User Reviews

"The 43 Peculiarity" was another very funny ep of "The Big Bang Theory"
8 December 2012 | by (Baton Rouge, LA) – See all my reviews

In this ep of "The Big Bang Theory": Howard and Raj notice that Sheldon leaves the cafeteria at a certain time but find nothing on his schedule to determine what he does. Obviously, they're very curious. Leonard finds out from Penny that she has a study partner in her class, who's British. Yes, he gets jealous. He finds out his name is Cole (Ryan Cartwright) and tries to small-talk with him. Penny finds out and is mad. Oh, and Sheldon's assistant Alex seems to really like Leonard...This was another very funny ep of "The Big Bang Theory" especially when it's revealed what Sheldon does during that time no one else knows about. So on that note, I very much liked "The 43 Peculiarity".

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