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Episode
Original Air Date
Synopsis
Price
1. The Bad Fish Paradigm
September 22, 2008
In the second season premiere, after her first date with Leonard goes awry, Penny finds an unwilling confidant in Leonard's anti-social roommate, Sheldon.
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$1.99
2. The Codpiece Topology
September 29, 2008
When Leonard sees Penny with a handsome new guy (TRAVIS SCHULDT), he enters into a rebound relationship with Sheldon's nemesis, Leslie Winkle (series regular SARA GILBERT).
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3. The Barbarian Sublimination
October 6, 2008
Sheldon creates a monster when he introduces Penny to the world of online gaming. Especially when her addiction wreaks havoc on his life.
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4. The Griffin Equivalency
October 13, 2008
Newly famous because of an article in a magazine, Raj (series regular KUNAL NAYYAR) gets an inflated ego and makes a disastrous play for Leonard s longtime crush, Penny.
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5. The Euclid Alternative
October 20, 2008
Leonard and his friends stage an intervention to make Sheldon confront his longstanding fear of driving.
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6. The Cooper-Nowitzki Theorem
November 3, 2008
A young grad students attraction to Sheldon confuses everyone including Sheldon himself.
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7. The Panty Pinata Polarization
November 10, 2008
Sheldon and Penny engage in a battle of wills as Penny vows to get revenge on Sheldon when he bans her from the apartment for a series of petty infractions.
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8. The Lizard-Spock Expansion
November 17, 2008
Wolowitz (series regular SIMON HELBERG) thinks he's found the love of his life (guest star SARA RUE) until she meets Leonard.
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9. The White Asparagus Triangulation
November 24, 2008
Sheldon can barely contain his joy when Leonard starts dating a woman (SARA RUE) who meets Sheldon's exacting standards.
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10. The Vartabedian Conundrum
December 8, 2008
Leonard just can't say no. When his relationship with new girlfriend, Stephanie starts moving too fast, Leonard turns to Penny for advice.
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11. The Bath Item Gift Hypothesis
December 15, 2008
Leonards handsome colleague starts dating Penny. And Leonards friends are being tormented by Sheldon's obsession with gift-giving etiquette.
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12. The Killer Robot Instability
January 12, 2009
When Pennys comment about Wolowitzs love life sends him into a depressed stupor, his friends lose their most important teammate in an upcoming fighting robot competition.
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13. The Friendship Algorithm
January 19, 2009
Socially awkward Sheldon develops a scientific procedure for making friends.
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14. The Financial Permeability
February 2, 2009
Sheldon's "simple" solution to Penny's financial problem leads to a confrontation between Leonard and Penny's hulking ex-boyfriend, Kurt (guest star BRIAN PATRICK WADE).
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15. The Maternal Capacitance
February 9, 2009
A disastrous visit from Mrs. Hofstadter (special guest star CHRISTINE BARANSKI) brings Leonard and Penny closer together.
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16. The Cushion Saturation
March 2, 2009
A paintball game has surprising consequences for Leonard and his friends when it leads to a fight between Penny and Sheldon - and romance for Wolowitz and Leslie.
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17. The Terminator Decoupling
March 9, 2009
A train trip to San Francisco takes a major detour when Leonard, Sheldon, Wolowitz and Raj discover that beautiful sci-fi actress SUMMER GLAU ("Terminator") is onboard.
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18. The Work Song Nanocluster
March 16, 2009
Penny's home hair products business becomes a complete nightmare when a caffeine-addled Sheldon takes over.
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19. The Dead Hooker Juxtaposition
March 30, 2009
There's a new queen bee in the building! Penny develops a rivalry with a sexy female neighbor moves in to the building and threatens to become the "new Penny."
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20. The Hofstadter Isotope
April 13, 2009
While Stuart (guest star KEVIN SUSSMAN), a fellow comic book-loving pal of the guys, romances Penny, Leonard and Wolowitz venture out into the world of "Ladies' Night" at a local bar.
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21. The Vegas Renormalization
April 27, 2009
The boys go to Vegas, leaving Sheldon's locked out at home.
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22. The Classified Materials Turbulence
May 4, 2009
Penny makes a surprising revelation about Leonard on her second date with Stuart. And, Wolowitz enlists his friends' help when he discovers a design flaw in his NASA project.
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23. The Monopolar Expedition
May 11, 2009
In the second season finale, Leonard and Penny reconsider their feelings for one another, when Leonard and his friends decide to spend the summer working - at the North Pole.
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Synopsis: "Two and a Half Men" co-creator/executive producer Chuck Lorre and "Gilmore Girls" co-executive producer Bill Prady team up to create "The Big Bang Theory," a new comedy about a pair of brilliant physicists who understand how the universe works but have no clue about how to interact with people ... especially women ... and specifically the free-spirited beauty who moves in next door.
Season year: 2009
Network: CBS
ASIN: B002P79KAC
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