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.
27 April, 2009The Big Bang Theory720p
S2
E21 -
The Vegas Renormalization
Leonard and Koothrappali escort a heartbroken Wolowitz to Las Vegas, and Sheldon becomes locked out of his apartment and must stay with Penny.
13 April, 2009The Big Bang Theory720p
S2
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.
30 March, 2009The Big Bang Theory720p
S2
E19 -
The Dead Hooker Juxtaposition
Penny squares off with a new beautiful female neighbor who may become the building's "new Penny."
16 March, 2009The Big Bang Theory720p
S2
E18 -
The Work Song Nanocluster
Penny's home business turns into a complete nightmare when Sheldon takes over.
09 March, 2009The Big Bang Theory720p
S2
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.
02 March, 2009The Big Bang Theory720p
S2
E16 -
The Cushion Saturation
A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz.
09 February, 2009The Big Bang Theory720p
S2
E15 -
The Maternal Capacitance
Leonard and Penny are drawn together after a disastrous visit from Leonard's mother.
02 February, 2009The Big Bang Theory720p
S2
E14 -
The Financial Permeability
Sheldon's solution to Penny's financial difficulty leads to a confrontation between Leonard and Penny's ex-boyfriend.
19 January, 2009The Big Bang Theory720p
S2
E13 -
The Friendship Algorithm
Sheldon creates a scientific procedure for making friends.
12 January, 2009The Big Bang Theory720p
S2
E12 -
The Killer Robot Instability
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.
15 December, 2008The Big Bang Theory720p
S2
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.
08 December, 2008The Big Bang Theory720p
S2
E10 -
The Vartabedian Conundrum
Leonard asks Penny for advice when his new relationship starts moving too fast.
24 November, 2008The Big Bang Theory720p
S2
E9 -
The White Asparagus Triangulation
Sheldon is thrilled when Leonard starts dating a woman who meets Sheldon's stringent standards.
17 November, 2008The Big Bang Theory720p
S2
E8 -
The Lizard-Spock Expansion
Leonard inadvertently steals away the new woman Wolowitz thinks is the love of his life.
10 November, 2008The Big Bang Theory720p
S2
E7 -
The Panty Piñata Polarization
When Sheldon bans Penny from the apartment for numerous minor infractions, she decides to retaliate.
03 November, 2008The Big Bang Theory720p
S2
E6 -
The Cooper-Nowitzki Theorem
Sheldon and the gang are confused when a young grad student is attracted to him.
20 October, 2008The Big Bang Theory720p
S2
E5 -
The Euclid Alternative
Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.
13 October, 2008The Big Bang Theory720p
S2
E4 -
The Griffin Equivalency
Raj gets an inflated ego and makes a play for Penny after being referenced in a magazine article.
06 October, 2008The Big Bang Theory720p
S2
E3 -
The Barbarian Sublimation
Sheldon creates a monster when he introduces Penny to online gaming.
