Sheldon attempts to help Penny understand Leonard's work, and Wolowitz becomes jealous when Leonard starts hanging out with his new girlfriend.
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US Ratings: 14.38m viewers. Nielsen Rating: 8.4/13. Nielsen 18-49 Rating: 5.6/13.
Guest Stars
Carol Ann Susi as Mrs. Wolowitz, Melissa Rauch as Bernadette
Writers
Chuck Lorre (Story), Richard Rosenstock (Story), Steve Holland (Story), Bill Prady (Teleplay), Steven Molaro (Teleplay), Maria Ferrari (Teleplay)
Director
Mark Cendrowski
Was previously titled The Athens Recurrence.
Penny: Look, can we just forget about this extra stuff and can you just tell me what Leonard does?
Sheldon: Alright. Leonard is attempting to learn why subatomic particles move the way they do.
Penny: Really? That's it? Well, that doesn't sound so complicated.
Sheldon: It's not... it's why Leonard does it.
Howard: Hope you don't mind, I told my girlfriend, Bernadette, she can join us for dinner.
Leonard: Sure, the more the merrier.
Sheldon: Wait, no. That's a false equivalency. More does not equal marry. If there was 2000 people in this apartment right now, would we be celebrating? No, we'd be suffocating.
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