The Big Bang Theory: Season 2

Episodes

# Air Date Title
1 Sep 22
2008

The Bad Fish Paradigm

Penny’s first date with Leonard goes awry; Penny finds Sheldon to be an unwilling confidant.

2 Sep 29
2008

The Codpiece Topology

A jealous Leonard reacts to Penny’s new guy by rebounding with Leslie.

3 Oct 06
2008

The Barbarian Sublimation

Sheldon creates a monster when he introduces Penny to online gaming.

4 Oct 13
2008

The Griffin Equivalency

Raj gets an inflated ego and makes a play for Penny after being referenced in a magazine article.

5 Oct 20
2008

The Euclid Alternative

Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.

6 Nov 03
2008

The Cooper-Nowitzki Theorem

Sheldon and the gang are confused when a young grad student is attracted to him.

7 Nov 10
2008

The Panty Piñata Polarization

When Sheldon bans Penny from the apartment for numerous minor infractions, she decides to retaliate.

8 Nov 17
2008

The Lizard-Spock Expansion

Leonard inadvertently steals away the new woman Wolowitz thinks is the love of his life.

9 Nov 24
2008

The White Asparagus Triangulation

Sheldon is thrilled when Leonard starts dating a woman who meets Sheldon’s stringent standards.

10 Dec 08
2008

The Vartabedian Conundrum

Leonard asks Penny for advice when his new relationship starts moving too fast.

11 Dec 15
2008

The Bath Item Gift Hypothesis

Penny starts dating Leonard’s handsome colleague; Leonard and his friends are tortured by Sheldon’s obsession with gift-giving etiquette.

12 Jan 12
2009

The Killer Robot Instability

Penny’s criticism of Wolowitz’s romantic life pushes him into depression and AWOL for a fighting robot battle the rest of guys are dependi…

13 Jan 19
2009

The Friendship Algorithm

Sheldon creates a scientific procedure for making friends.

14 Feb 02
2009

The Financial Permeability

Sheldon’s solution to Penny’s financial difficulty leads to a confrontation between Leonard and Penny’s ex-boyfriend.

15 Feb 09
2009

The Maternal Capacitance

Leonard and Penny are drawn together after a disastrous visit from Leonard’s mother.

16 Mar 02
2009

The Cushion Saturation

A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz.

17 Mar 09
2009

The Terminator Decoupling

Leonard, Sheldon and Wolowitz are ecstatic to learn that a famous science-fiction actress (Summer Glau) is on board the train they are taking to San Francisco.

18 Mar 16
2009

The Work Song Nanocluster

Penny’s home business turns into a complete nightmare when Sheldon takes over.

19 Mar 30
2009

The Dead Hooker Juxtaposition

Penny squares off with a new beautiful female neighbor who may become the building’s “new Penny.”

20 Apr 13
2009

The Hofstadter Isotope

A fellow comic book enthusiast’s hitting on Penny leads to Leonard and Howard going to a bar’s Ladies’ Night.

21 Apr 27
2009

The Vegas Renormalization

Leonard and Koothrappali escort a heartbroken Wolowitz to Las Vegas, and Sheldon becomes locked out of his apartment and must stay with Penny.

22 May 04
2009

The Classified Materials Turbulence

Penny’s second date with Stuart sees her making a comment that gives Leonard new hope for a relationship with her. Wolowitz realizes there’s a crucial error in a

23 May 11
2009

The Monopolar Expedition

The guys’ plan to work over the summer at the North Pole makes Penny revaluate her feelings for Leonard.

About The Big Bang Theory

What happens when hyperintelligent roommates Sheldon and Leonard meet Penny, a free-spirited beauty moving in next door, and realize they know next to nothing about life outside of the lab. Rounding out the crew are the smarmy Wolowitz, who thinks he’s as sexy as he is brainy, and Koothrappali, who suffers from an inability to speak in the presence of a woman.

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