The Big Bang Theory · S2 · E7
The Panty Piñata Polarization
When Sheldon bans Penny from the apartment for numerous minor infractions, she decides to retaliate.
About this episode
When Sheldon bans Penny from the apartment for numerous minor infractions, she decides to retaliate.
Season 2

1The Bad Fish Paradigm
22 minSep 22, 2008★ 7.9
Penny's first date with Leonard goes awry; Penny finds Sheldon to be an unwilling confidant.

2The Codpiece Topology
21 minSep 29, 2008★ 7.7
A jealous Leonard reacts to Penny's new guy by rebounding with Leslie.

3The Barbarian Sublimation
21 minOct 6, 2008★ 8.0
Sheldon creates a monster when he introduces Penny to online gaming.

4The Griffin Equivalency
21 minOct 13, 2008★ 7.6
Raj gets an inflated ego and makes a play for Penny after being referenced in a magazine article.

5The Euclid Alternative
20 minOct 20, 2008★ 7.6
Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.

6The Cooper-Nowitzki Theorem
21 minNov 3, 2008★ 7.9
Sheldon and the gang are confused when a young grad student is attracted to him.

7The Panty Piñata Polarization
21 minNov 10, 2008★ 8.0Now viewing
When Sheldon bans Penny from the apartment for numerous minor infractions, she decides to retaliate.

8The Lizard-Spock Expansion
20 minNov 17, 2008★ 7.5
Leonard inadvertently steals away the new woman Wolowitz thinks is the love of his life.

9The White Asparagus Triangulation
21 minNov 24, 2008★ 7.5
Sheldon is thrilled when Leonard starts dating a woman who meets Sheldon's stringent standards.

10The Vartabedian Conundrum
21 minDec 8, 2008★ 7.0
Leonard asks Penny for advice when his new relationship starts moving too fast.

11The Bath Item Gift Hypothesis
21 minDec 15, 2008★ 8.3
Penny starts dating Leonard's handsome colleague; Leonard and his friends are tortured by Sheldon's obsession with gift-giving etiquette.

12The Killer Robot Instability
21 minJan 12, 2009★ 7.5
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.

13The Friendship Algorithm
21 minJan 19, 2009★ 7.5
Sheldon creates a scientific procedure for making friends.

14The Financial Permeability
21 minFeb 2, 2009★ 7.4
Sheldon's solution to Penny's financial difficulty leads to a confrontation between Leonard and Penny's ex-boyfriend.

15The Maternal Capacitance
21 minFeb 9, 2009★ 8.2
Leonard and Penny are drawn together after a disastrous visit from Leonard's mother.

16The Cushion Saturation
21 minMar 2, 2009★ 7.5
A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz.

17The Terminator Decoupling
21 minMar 9, 2009★ 7.5
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.

18The Work Song Nanocluster
20 minMar 16, 2009★ 7.6
Penny's home business turns into a complete nightmare when Sheldon takes over.

19The Dead Hooker Juxtaposition
20 minMar 30, 2009★ 7.6
Penny squares off with a new beautiful female neighbor who may become the building's "new Penny."

20The Hofstadter Isotope
20 minApr 13, 2009★ 7.6
A fellow comic book enthusiast's hitting on Penny leads to Leonard and Howard going to a bar's Ladies' Night.

21The Vegas Renormalization
22 minApr 27, 2009★ 7.5
Leonard and Koothrappali escort a heartbroken Wolowitz to Las Vegas, and Sheldon becomes locked out of his apartment and must stay with Penny.

22The Classified Materials Turbulence
19 minMay 4, 2009★ 7.5
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.

23The Monopolar Expedition
21 minMay 11, 2009★ 7.5
The guys' plan to work over the summer at the North Pole makes Penny revaluate her feelings for Leonard.
Guest stars


