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Season:

Season 4: Episode 24 - The Roommate Transmogrification

­Bernadette has big news: She completed her PhD! Howard is proud of her, but the rest of the gang razzes him, pointing out that after he and Bernadette get married, they will be known as Mr. and Dr. Wolowitz. Leonard and Priya's relationship becomes too much for Raj to take when he hears them playing a Star Tre... More...

Season 4: Episode 23 - The Engagement Reaction

­Bernadette and Mrs. Wolowitz have a “get-to-know-ya” lunch at a deli. Howard hopes that once his mom sees how wonderful Bernadette is, she’ll welcome her into the family like a daughter and he’ll be able to finally tell her about the engagement. When his mother returns and heads into the ... More...

Season 4: Episode 22 - The Wildebeest Implementation

­After Leonard & Priya invited Howard & Bernadette to dinner, Amy & Bernadette devise a plan for Bernadette to act as a spy on Leonard & Priya and to also talk about all the awesome things Penny is doing now. After the dinner begins, Penny is quickly swept up in the drama when Bernadette reports ... More...

Season 4: Episode 21 - The Agreement Dissection

­Sheldon and Priya knock heads when she uses her lawyer skills to pick apart the roommate agreement. Frustrated, Sheldon goes out and ends up spending a girls' night with Penny, Bernadette and Amy. ­ More...

Season 4: Episode 20 - The Herb Garden Germination

­During a book reading, Amy tells Sheldon a piece of juicy gossip she heard where Bernadette is thinking about breaking up with Howard. Sheldon, in turn, shares with Leonard, who shares it with Priya who tells Leonard that it would be good news for Raj. He happens to have a crush on Bernadette. Leonard tells Penny a... More...

Season 4: Episode 19 - The Zarnecki Incursion

­Leonard comes home to find an upset Sheldon talking to a police officer in the living room. Sheldon goes on and on about how they stole everything. We learn that Sheldon's World of Warcraft account has been hacked and the character that he has spent years working on has been cleaned out. Essentially, identity ... More...

Season 4: Episode 18 - The Prestidigitation Approximation

­Wolowitz drives Sheldon crazy as he tries to figure out Howard's magic trick. It seems to work as Howard does it for Raj and Penny and Sheldon spends the rest of the episode coming up with various ways to successfully do the trick himself but to no avail. In the end, we find out that Raj and Penny are in on the jok... More...

Season 4: Episode 17 - The Toast Derivation

­With Leonard dating Priya and Priya staying with her brother, Raj, the gang starts hanging out at Raj's place, much to Sheldon's disbelief. Amy Farrah Fowler helps with him the startling realization that it is Leonard who is the social center of their group and not Sheldon. Undeterred, Sheldon decides to create his... More...

Season 4: Episode 16 - The Cohabitation Formulation

­Wolowitz and Bernadette are in a great spot in their relationship but he never stays over because he always has to run home to help his mom out in the morning. Bernadette wants them to move in together but Wolowitz can't see the two of them living with his mother working out so well. Finally, Bernadette has enough ... More...

Season 4: Episode 15 - The Benefactor Factor

An incredibly wealthy older woman is considering making a huge donation to the school's science program.  When she takes a liking to Leonard, Sheldon attempts to pimp Leonard out in the name of science. Jessica Walter guest stars as the older woman that wants Leonard. Josh Molina guest stars as the president of th... More...

Season 4: Episode 14 - The Thespian Catalyst

­Sheldon has agreed to take part in a short lecture series at the university. After completing his first lecture, he is shocked to find out just how much the students hate him as a teacher. Amy tells him that teaching is a performing art and suggests to Sheldon that perhaps her best friend, Penny, could share some ... More...

Season 4: Episode 13 - The Love Car Displacement

­The gang goes on a road trip to Big Sur where the guys, Bernadette and Amy are speaking at a symposium. Penny tags along as Amy's plus one for the free spa weekend that's promised. When Wolowitz meets Bernadette's hulk of an ex-boyfriend, he becomes really insecure and they have a fight, throwing the hotel room arr... More...

Season 4: Episode 12 - The Bus Pants Utilization

­Leonard comes up with a great idea for an phone app and the guys all pitch in to help. When Sheldon becomes too controlling, Leonard fires him. Penny finds Sheldon by himself in the hall, she invites him to work with her on an app of their own. Quickly annoyed with him, Penny begs the guys to take Sheldon back. Whe... More...

Season 4: Episode 11 - The Justice League Recombination

­Penny is dating Zack again and becomes upset when the guys make fun of him, making him feel stupid. When they go over to Penny's to apologize to him, they realize he can help them out with the New Year's costume competition at the comic book store and offer to make him Superman in their Justice League. Unhappy that... More...

Season 4: Episode 10 - The Alien Parasite Hypothesis

­While out at dinner with Penny and Bernadette, Amy Farrah Fowler meets Zack, Penny's ex-boyfriend. Much to her surprise, she finds herself flushed with an elevated heart rate and a tingling sensation. She and Sheldon discuss her symptons and she discovers that she was sexually aroused. Uncertain of what to do, Shel... More...

Season 4: Episode 9 - The Boyfriend Complexity

­When Penny's dad comes to visit, Leonard discovers that she told her parents they were back together because Leonard was always their favorite boyfriend of hers. Leonard takes full advantage and plays his boyfriend role to the hilt to Penny's dismay. Raj is disappointed when Bernadette shows up during his and Howar... More...


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