After Leonard tells Sheldon that he is having surgery to repair his deviated septum, Sheldon is convinced that Leonard will be the one in seven hundred thousand that will ...

As Penny has her prom dress out after organizing her closet, she, Bernadette and Amy talk about their respective proms, the latter two whose were not what they would have ...

Bernadette is excited to be asked to be included in a magazine photo shoot featuring the fifty sexiest female scientists. The topic places a wedge between her and Amy, wh ...

As Sheldon's work is still relatively new in dark matter and as Raj hears about some ground breaking work in mines that may have major implications in both theoretical ph ...

Leonard, Sheldon, Howard and Raj all come to the conclusion that they have been so distracted ever since the arrival of the girls in their lives that they have not been a ...

Emily joins the gang for the first time for one of their regular dinners at Leonard and Sheldon's apartment, she never yet having met either Leonard or Penny. As Emily is ...

Although not their first choice, NASA asks Howard to throw the first pitch for a Los Angeles Angels game on Space Day. Non-athletic Howard is worried that he will make a ...

Sheldon learns from Mrs. Davis in Human Resources that the university has come up with a solution to change his area of research from string theory to dark matter. They w ...

Forty-five days after leaving Pasadena to regroup after a series of unwanted changes in his life, Sheldon telephones Leonard to come pick him up in Kingman, Arizona, wher ...

Leonard and Penny's good news that they are engaged and Raj's that he has had sex with Emily are tempered by Howard and Bernadette's problem of not being able to keep any ...

Penny has decided not to complain about the gorilla movie she's filming anymore. But an incident on the set makes Penny reevaluate the decisions she made in her life. Mrs ...

The guys are organizing Star Wars: Episode IV - A New Hope (1977) day, which is on May the 4th, the date so chosen because..., and as such the date cannot be changed. The ...

Howard and Raj have a boys' night in together as Raj wants to watch a horror movie - such movies which he doesn't like or understand why anyone would like - as Emily want ...

Leonard, Howard and Raj are all excited by what the primordial gravity wave discovery means for the scientific community. Sheldon, on the other hand, is not excited. Leon ...

Penny returns from what she believes was a promising audition for a role she actually wants. Her anticipation turns to disappointment when the telephone call she receives ...

Howard and Sheldon have had a successful trip to NASA in Houston, both getting along with the other. Their next stop is to visit Sheldon's mother, who he has not told he ...

Bernadette is tired of Sheldon always putting Howard down. Sheldon, in response, says that Howard started it ten years ago when they first met, those insults which still ...

Penny sitting on the floor during dinner makes everyone in the gang think that Leonard and Sheldon should invest in a dining room table, that is except for Sheldon, despi ...

Amy and Sheldon's annual relationship status discussion takes place in the lead up to Valentine's Day. Amy is able to convince Sheldon to go away for Valentine's to a bed ...

Despite doing whatever humanly and technically possible, the guys are unable to obtain tickets to this year's Comic-Con through legitimate means as the tickets are all so ...

Following her recent acting disappointment, Penny decides she needs to take decisive action to make her career happen by devoting her time one hundred percent into the en ...

An excited Penny gets a small part on the latest episode of NCIS (2003). She not only tells everyone she knows about it, but she believes this part is her big break. The ...

Just as he is about to head to the airport, Sheldon decides to tell his friends that he is going to Texas to fill in for his brother-in-law at his sister's at home baby d ...

Ever since Sheldon made the major scientific discovery of how to stabilize a new, stable super heavy element, Sheldon has been miserable promoting his discovery since he ...

Howard invites all his friends over to his mother's house for Thanksgiving. He does have ulterior motives: his father-in-law, Mike Rostenkowski, with ho he has nothing in ...

Out of circumstance, Leonard admits to Sheldon that he still has in his possession a DVD rental from seven years ago that was under Sheldon's name, and that Leonard was s ...

Leonard, Sheldon and Amy run into Leonard and Sheldon's childhood hero Arthur Jeffries, aka Professor Proton, the scientist host of their favorite childhood television pr ...

The anniversary of Howard and Bernadette's first date is approaching, and Howard wants to do something special and romantic for the occasion, namely write a song for her ...

Amy has the opportunity to work on a project at Cal Tech for a couple of months, which means that she and Sheldon would be at the same workplace. To her surprise, Sheldon ...

For her Psychology class, Penny has on the recommended reading list one of Leonard's mother's books. Leonard doesn't want Penny to read it, and all about his troubled chi ...

The gang, after rebuking Raj's attempt of a social gathering in the form of a murder mystery dinner party, are surprised that they actually like Raj's latest idea: an int ...

Leonard has come home a few days early, surprising Penny. The one person who isn't surprised is Sheldon, as Leonard hasn't told him and doesn't want him to know so that h ...