E11. The Bad Fish Paradigm
Sep 22, 2008 · 22 min
Penny's first date with Leonard goes awry; Penny finds Sheldon to be an unwilling confidant.
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Episodes: 23 / 23
E1
E22. The Codpiece Topology
Sep 29, 2008 · 21 min
A jealous Leonard reacts to Penny's new guy by rebounding with Leslie.
E33. The Barbarian Sublimation
Oct 6, 2008 · 21 min
Sheldon creates a monster when he introduces Penny to online gaming.
E44. The Griffin Equivalency
Oct 13, 2008 · 21 min
Raj gets an inflated ego and makes a play for Penny after being referenced in a magazine article.
E55. The Euclid Alternative
Oct 20, 2008 · 20 min
Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.
E66. The Cooper-Nowitzki Theorem
Nov 3, 2008 · 21 min
Sheldon and the gang are confused when a young grad student is attracted to him.
E77. The Panty Piñata Polarization
Nov 10, 2008 · 21 min
When Sheldon bans Penny from the apartment for numerous minor infractions, she decides to retaliate.
E88. The Lizard-Spock Expansion
Nov 17, 2008 · 20 min
Leonard inadvertently steals away the new woman Wolowitz thinks is the love of his life.
E99. The White Asparagus Triangulation
Nov 24, 2008 · 21 min
Sheldon is thrilled when Leonard starts dating a woman who meets Sheldon's stringent standards.
E1010. The Vartabedian Conundrum
Dec 8, 2008 · 21 min
Leonard asks Penny for advice when his new relationship starts moving too fast.
E1111. The Bath Item Gift Hypothesis
Dec 15, 2008 · 21 min
Penny starts dating Leonard's handsome colleague; Leonard and his friends are tortured by Sheldon's obsession with gift-giving etiquette.
E1212. The Killer Robot Instability
Jan 12, 2009 · 21 min
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.
E1313. The Friendship Algorithm
Jan 19, 2009 · 21 min
Sheldon creates a scientific procedure for making friends.
E1414. The Financial Permeability
Feb 2, 2009 · 21 min
Sheldon's solution to Penny's financial difficulty leads to a confrontation between Leonard and Penny's ex-boyfriend.
E1515. The Maternal Capacitance
Feb 9, 2009 · 21 min
Leonard and Penny are drawn together after a disastrous visit from Leonard's mother.
E1616. The Cushion Saturation
Mar 2, 2009 · 21 min
A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz.
E1717. The Terminator Decoupling
Mar 9, 2009 · 21 min
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.
E1818. The Work Song Nanocluster
Mar 16, 2009 · 20 min
Penny's home business turns into a complete nightmare when Sheldon takes over.
E1919. The Dead Hooker Juxtaposition
Mar 30, 2009 · 20 min
Penny squares off with a new beautiful female neighbor who may become the building's "new Penny."
E2020. The Hofstadter Isotope
Apr 13, 2009 · 20 min
A fellow comic book enthusiast's hitting on Penny leads to Leonard and Howard going to a bar's Ladies' Night.
E2121. The Vegas Renormalization
Apr 27, 2009 · 22 min
Leonard and Koothrappali escort a heartbroken Wolowitz to Las Vegas, and Sheldon becomes locked out of his apartment and must stay with Penny.
E2222. The Classified Materials Turbulence
May 4, 2009 · 19 min
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.
E2323. The Monopolar Expedition
May 11, 2009 · 21 min
The guys' plan to work over the summer at the North Pole makes Penny revaluate her feelings for Leonard.
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