TV Episodes The Best Episodes From The Big Bang Theory Season 2  

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49 votes 16 voters 23 items

There are so many great episodes of The Big Bang Theory in season 2, but which are your absolute favorite? This list ranks every episode of The Big Bang Theory season 2 from the best to worst, with the help of your votes.

The second season of The Big Bang Theory premiered on September 22, 2008, and consisted of 23 episodes. Season 2 of The Big Bang Theory picks up right after the first finale where Penny and Leonard have a date. The season received three Emmy nominations, including Jim Parsons's first for "Outstanding Lead Actor in a Comedy Series."

Which The Big Bang Theory season 2 episode did you like better, "The Financial Permeability" or "The Euclid Alternative"? Vote up the best episodes from The Big Bang Theory season 2 that you'd like to see at the top of the list.

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The Bath Item Gift Hypothesis is listed (or ranked) 1 on the list The Best Episodes From The Big Bang Theory Season 2
The Bath Item Gift Hypothesis Dec 15 2008 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 Hofstadter Isotope is listed (or ranked) 2 on the list The Best Episodes From The Big Bang Theory Season 2
The Hofstadter Isotope Apr 13 2009 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 Bad Fish Paradigm is listed (or ranked) 3 on the list The Best Episodes From The Big Bang Theory Season 2
The Bad Fish Paradigm Sep 22 2008 Penny's first date with Leonard goes awry; Penny finds Sheldon to be an unwilling confidant.

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The Work Song Nanocluster is listed (or ranked) 4 on the list The Best Episodes From The Big Bang Theory Season 2
The Work Song Nanocluster Mar 16 2009 Penny's home business turns into a complete nightmare when Sheldon takes over.

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The Maternal Capacitance is listed (or ranked) 5 on the list The Best Episodes From The Big Bang Theory Season 2
The Maternal Capacitance Feb 09 2009 Leonard and Penny are drawn together after a disastrous visit from Leonard's mother.

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The Vegas Renormalization is listed (or ranked) 6 on the list The Best Episodes From The Big Bang Theory Season 2
The Vegas Renormalization Apr 27 2009 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 Financial Permeability is listed (or ranked) 7 on the list The Best Episodes From The Big Bang Theory Season 2
The Financial Permeability Feb 02 2009 Sheldon's solution to Penny's financial difficulty leads to a confrontation between Leonard and Penny's ex-boyfriend.

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The Vartabedian Conundrum is listed (or ranked) 8 on the list The Best Episodes From The Big Bang Theory Season 2
The Vartabedian Conundrum Dec 08 2008 Leonard asks Penny for advice when his new relationship starts moving too fast.

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The Barbarian Sublimation is listed (or ranked) 9 on the list The Best Episodes From The Big Bang Theory Season 2
The Barbarian Sublimation Oct 06 2008 Sheldon creates a monster when he introduces Penny to online gaming.

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The Cooper-Nowitzki Theorem is listed (or ranked) 10 on the list The Best Episodes From The Big Bang Theory Season 2
The Cooper-Nowitzki Theorem Nov 03 2008 Sheldon and the gang are confused when a young grad student is attracted to him.

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The Killer Robot Instability is listed (or ranked) 11 on the list The Best Episodes From The Big Bang Theory Season 2
The Killer Robot Instability Jan 12 2009 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 is listed (or ranked) 12 on the list The Best Episodes From The Big Bang Theory Season 2
The Friendship Algorithm Jan 19 2009 Sheldon creates a scientific procedure for making friends.

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The Panty Piñata Polarization is listed (or ranked) 13 on the list The Best Episodes From The Big Bang Theory Season 2
The Panty Piñata Polarization Nov 10 2008 When Sheldon bans Penny from the apartment for numerous minor infractions, she decides to retaliate.

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The Terminator Decoupling is listed (or ranked) 14 on the list The Best Episodes From The Big Bang Theory Season 2
The Terminator Decoupling Mar 09 2009 "The Terminator Decoupling" is an episode of the United States television series The Big Bang Theory that first aired on CBS on March 9, 2009. It is the seventeenth episode of the ...more

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The Cushion Saturation is listed (or ranked) 15 on the list The Best Episodes From The Big Bang Theory Season 2
The Cushion Saturation Mar 02 2009 A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz.

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The Monopolar Expedition is listed (or ranked) 16 on the list The Best Episodes From The Big Bang Theory Season 2
The Monopolar Expedition May 11 2009 The guys' plan to work over the summer at the North Pole makes Penny revaluate her feelings for Leonard.

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The Euclid Alternative is listed (or ranked) 17 on the list The Best Episodes From The Big Bang Theory Season 2
The Euclid Alternative Oct 20 2008 Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.

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The White Asparagus Triangulat... is listed (or ranked) 18 on the list The Best Episodes From The Big Bang Theory Season 2
The White Asparagus Triangulation Nov 24 2008 Sheldon is thrilled when Leonard starts dating a woman who meets Sheldon's stringent standards.

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The Dead Hooker Juxtaposition is listed (or ranked) 19 on the list The Best Episodes From The Big Bang Theory Season 2
The Dead Hooker Juxtaposition Mar 30 2009 Penny squares off with a new beautiful female neighbor who may become the building's "new Penny."

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The Codpiece Topology is listed (or ranked) 20 on the list The Best Episodes From The Big Bang Theory Season 2
The Codpiece Topology Sep 29 2008 A jealous Leonard reacts to Penny's new guy by rebounding with Leslie.

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The Lizard-Spock Expansion is listed (or ranked) 21 on the list The Best Episodes From The Big Bang Theory Season 2
The Lizard-Spock Expansion Nov 17 2008 Leonard inadvertently steals away the new woman Wolowitz thinks is the love of his life.

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The Classified Materials Turbu... is listed (or ranked) 22 on the list The Best Episodes From The Big Bang Theory Season 2
The Classified Materials Turbulence May 04 2009 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 Griffin Equivalency is listed (or ranked) 23 on the list The Best Episodes From The Big Bang Theory Season 2
The Griffin Equivalency Oct 13 2008 Raj gets an inflated ego and makes a play for Penny after being referenced in a magazine article.