In the aftermath of Raj and Penny's night together from which Raj believes he's in love with her, everyone seems to be mad at Raj. Although he has no intention of getting ...

With Priya having moved back to India, she and Leonard decide to try having a long distance relationship, which includes Skyping each other on a regular basis. Howard sug ...

After a group dinner at Leonard and Sheldon's apartment, Leonard and Amy are the unlikely pair left alone at the apartment as everyone else goes off for the evening. Desp ...

Especially with Howard and Bernadette's impending marriage, everyone, including Raj himself, is feeling sorry for Raj not having a girlfriend. The problem of Raj finding ...

Since they are in the comic book store when he stops in, Leonard and Sheldon are invited by Wil Wheaton to a party at his house. Leonard has every intention of going, whi ...

Sheldon's mother, Mary Cooper, stops by for a visit before embarking on a Christian based cruise. Sheldon is excited about her visit if only to have his Mommy do Mommy th ...

Leonard is nonplussed when he is approached by a beautiful woman named Alice while they're both in the comic book store. He figures that her interest in him is purely on ...

While Amy and the guys are eating lunch in the cafeteria, Howard receives a text message from Bernadette about how her wedding and bridesmaids dress shopping is going wit ...

A blue jay perched on his apartment window ledge is too much for ornithophobic Sheldon to handle. As no one - even the authorities (gasp) - seems to want to help him shoo ...

When Stuart meets Amy as she accompanies Sheldon to the comic book store, Stuart feels they had a moment. As such, Stuart wants to ask her out on a date. Not knowing what ...

Out of the blue, Leonard receives a message through his Facebook page from Jimmy Speckerman, a high school acquaintance who bullied him all throughout school. Jimmy wants ...

On Sheldon and Amy's scheduled monthly date night, Amy becomes obviously upset with Sheldon. Penny, who witnessed the incident, tells Sheldon that Amy's anger is due to h ...

After thinking about it long and hard, Leonard decides to ask Penny out on a real date again, which not only garners a shocked reaction from Penny, but the same from the ...

Leonard and Penny have decided to start dating each other again, but Penny is worried that any little glitch in their second time around will stall or halt them getting b ...

As Leonard is feeling sleep deprived because of Sheldon, Leonard is in no mood to have to drive Sheldon to the dentist's office as per the roommate agreement. As such, Le ...

Much to Sheldon's chagrin, President Siebert orders him to take his mandatory vacation time immediately. Sheldon does whatever he can to pretend to take his vacation but ...

With Professor Rothman's retirement - or what could be considered him being forced out due to mental instability - there is a battle in the physics department between She ...

Sheldon's orderly world is thrown into a tailspin when his regular barber, Mr. D'Onofrio, is in the hospital with a coma when Sheldon's regularly scheduled appointment ar ...

Raj comes up with the idea of going down memory lane by the guys having a weekend long gaming marathon like they used to do, this time playing the new game, Star Wars: Th ...

To show her appreciation for all the free meals she's had at their apartment, Penny, using money from an acting residual check, gives Leonard and Sheldon each a gift: a v ...

Renowned scientist Stephen Hawking is coming to the university for an extended guest lecture series, and an excited Howard has been asked to maintain the equipment on his ...

It's two weeks before Howard and Bernadette's wedding. While the gals have a gift bag packing evening while talking about Bernadette's chosen married name and some other ...

With only a few weeks until the launch, Howard's space mission is scrapped due to technical difficulties. Rather than be disappointed, Howard is relieved, since he had al ...

As Howard is in the Soyuz space capsule awaiting the launch to the International Space Station, his new wife and their friends are at Leonard and Sheldon's apartment watc ...