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The Big Bang Theory: Season 2

📺 Season 2 23 Episodes 2008-09-22 EN

Season Overview

This season, Leonard gets a girl. So does Sheldon. Howard drives the Mars Rover into a ditch. Raj woos a terminator. Gorgeous girl-next-door Penny falls under the spell of Age of Conan. And super-smart, ueberconfident Leslie Winkler reduces mere men to spineless jellyfish.

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Episodes (23)

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The Bad Fish Paradigm S02E01 22 min

The Bad Fish Paradigm

Air Date: 2008-09-22

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

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The Codpiece Topology S02E02 21 min

The Codpiece Topology

Air Date: 2008-09-29

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

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The Barbarian Sublimation S02E03 21 min

The Barbarian Sublimation

Air Date: 2008-10-06

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

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The Griffin Equivalency S02E04 21 min

The Griffin Equivalency

Air Date: 2008-10-13

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

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The Euclid Alternative S02E05 20 min

The Euclid Alternative

Air Date: 2008-10-20

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

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The Cooper-Nowitzki Theorem S02E06 21 min

The Cooper-Nowitzki Theorem

Air Date: 2008-11-03

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

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The Panty Piñata Polarization S02E07 21 min

The Panty Piñata Polarization

Air Date: 2008-11-10

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

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The Lizard-Spock Expansion S02E08 20 min

The Lizard-Spock Expansion

Air Date: 2008-11-17

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

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The White Asparagus Triangulation S02E09 21 min

The White Asparagus Triangulation

Air Date: 2008-11-24

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

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The Vartabedian Conundrum S02E10 21 min

The Vartabedian Conundrum

Air Date: 2008-12-08

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

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The Bath Item Gift Hypothesis S02E11 21 min

The Bath Item Gift Hypothesis

Air Date: 2008-12-15

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

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The Killer Robot Instability S02E12 21 min

The Killer Robot Instability

Air Date: 2009-01-12

Penny's criticism of Wolowitz's romantic life pushes him into depression and AWOL for a fighting robot battle the rest of guys are depending on him for.

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The Friendship Algorithm S02E13 21 min

The Friendship Algorithm

Air Date: 2009-01-19

Sheldon creates a scientific procedure for making friends.

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The Financial Permeability S02E14 21 min

The Financial Permeability

Air Date: 2009-02-02

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

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The Maternal Capacitance S02E15 21 min

The Maternal Capacitance

Air Date: 2009-02-09

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

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The Cushion Saturation S02E16 21 min

The Cushion Saturation

Air Date: 2009-03-02

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

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The Terminator Decoupling S02E17 21 min

The Terminator Decoupling

Air Date: 2009-03-09

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.

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The Work Song Nanocluster S02E18 20 min

The Work Song Nanocluster

Air Date: 2009-03-16

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

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The Dead Hooker Juxtaposition S02E19 20 min

The Dead Hooker Juxtaposition

Air Date: 2009-03-30

Penny squares off with a new beautiful female neighbor who may become the building's "new Penny."

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The Hofstadter Isotope S02E20 20 min

The Hofstadter Isotope

Air Date: 2009-04-13

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

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The Vegas Renormalization S02E21 22 min

The Vegas Renormalization

Air Date: 2009-04-27

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

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The Classified Materials Turbulence S02E22 19 min

The Classified Materials Turbulence

Air Date: 2009-05-04

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 NASA project he's working on.

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The Monopolar Expedition S02E23 21 min

The Monopolar Expedition

Air Date: 2009-05-11

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

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