More episodes from Season 2
E1 • The Bad Fish Paradigm
Penny's first date with Leonard goes awry and she finds Sheldon to be an unwilling confidant.
21m • 2008Penny's first date with Leonard goes awry and she finds Sheldon to be an unwilling confidant.
E2 • The Codpiece Topology
A jealous Leonard reacts to Penny's new guy by rebounding with Leslie.
20m • 2008A jealous Leonard reacts to Penny's new guy by rebounding with Leslie.
E3 • The Barbarian Sublimation
Sheldon creates a monster when he introduces Penny to online gaming.
20m • 2008Sheldon creates a monster when he introduces Penny to online gaming.
E4 • The Griffin Equivalency
Raj gets an inflated ego and makes a play for Penny after being referenced in a magazine article.
20m • 2008Raj gets an inflated ego and makes a play for Penny after being referenced in a magazine article.
E5 • The Euclid Alternative
Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.
19m • 2008Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.
E6 • The Cooper-Nowitzki Theorem
Sheldon and the gang are confused when a young grad student is attracted to him.
20m • 2008Sheldon and the gang are confused when a young grad student is attracted to him.
E7 • The Panty Piñata Polarization
When Sheldon bans Penny from the apartment for numerous minor infractions, she decides to retaliate.
20m • 2008When Sheldon bans Penny from the apartment for numerous minor infractions, she decides to retaliate.
E8 • The Lizard-Spock Expansion
Leonard inadvertently steals away the new woman Wolowitz thinks is the love of his life.
19m • 2008Leonard inadvertently steals away the new woman Wolowitz thinks is the love of his life.
E9 • The White Asparagus Triangulation
Sheldon is thrilled when Leonard starts dating a woman who meets Sheldon's stringent standards.
20m • 2008Sheldon is thrilled when Leonard starts dating a woman who meets Sheldon's stringent standards.
E10 • The Vartabedian Conundrum
Leonard asks Penny for advice when his new relationship starts moving too fast.
20m • 2008Leonard asks Penny for advice when his new relationship starts moving too fast.
E11 • 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.
20m • 2008Penny starts dating Leonard's handsome colleague; Leonard and his friends are tortured by Sheldon's obsession with gift-giving etiquette.
E12 • The Killer Robot Instability
Penny's criticism of Wolowitz's romantic life pushes him into depression and he goes AWOL for a fighting robot battle the rest of guys are depending on him for.
20m • 2008Penny's criticism of Wolowitz's romantic life pushes him into depression and he goes AWOL for a fighting robot battle the rest of guys are depending on him for.
E13 • The Friendship Algorithm
Sheldon creates a scientific procedure for making friends.
20m • 2008Sheldon creates a scientific procedure for making friends.
E14 • The Financial Permeability
Sheldon's solution to Penny's financial difficulty leads to a confrontation between Leonard and Penny's ex-boyfriend.
21m • 2008Sheldon's solution to Penny's financial difficulty leads to a confrontation between Leonard and Penny's ex-boyfriend.
E15 • The Maternal Capacitance
Leonard and Penny are drawn together after a disastrous visit from Leonard's mother.
20m • 2008Leonard and Penny are drawn together after a disastrous visit from Leonard's mother.
E16 • The Cushion Saturation
A paintball game leads to a fight between Sheldon and Penny and romance for Leslie and Wolowitz.
20m • 2008A paintball game leads to a fight between Sheldon and Penny and romance for Leslie and Wolowitz.
E17 • 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.
20m • 2008Leonard, 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.
E18 • The Work Song Nanocluster
Penny's home business turns into a complete nightmare when Sheldon takes over.
20m • 2008Penny's home business turns into a complete nightmare when Sheldon takes over.
E19 • The Dead Hooker Juxtaposition
Penny squares off with a new beautiful female neighbor who may become the building's 'new Penny'.
19m • 2008Penny squares off with a new beautiful female neighbor who may become the building's 'new Penny'.
E20 • The Hofstadter Isotope
A fellow comic book enthusiast's hitting on Penny leads to Leonard and Howard going to a bar's Ladies' Night.
19m • 2008A fellow comic book enthusiast's hitting on Penny leads to Leonard and Howard going to a bar's Ladies' Night.
E21 • The Vegas Renormalization
Leonard and Koothrappali escort a heartbroken Wolowitz to Las Vegas. Sheldon becomes locked out of his apartment so must stay with Penny.
21m • 2008Leonard and Koothrappali escort a heartbroken Wolowitz to Las Vegas. Sheldon becomes locked out of his apartment so must stay with Penny.
E22 • 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 NASA project he's working on.
18m • 2008Penny'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.
E23 • The Monopolar Expedition
The guys' plan to work over the summer at the North Pole makes Penny revaluate her feelings for Leonard.
20m • 2008The guys' plan to work over the summer at the North Pole makes Penny revaluate her feelings for Leonard.
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