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The Big Bang Theory

Creator/producers Chuck Lorre ("Two and a Half Men") and Bill Prady ("Dharma & Greg") make comedy a science with the second big season of THE BIG BANG THEORY that makes room for new series regular Sara Gilbert (who starred on "Roseanne" with series star Galecki). Check out the physics of funny!

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1. The Bad Fish Paradigm

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.

Subtitles and Closed Captions Language: English Runtime: 21 minutes Release date: September 21, 2008
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2. The Codpiece Topology

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).

Subtitles and Closed Captions Language: English Runtime: 21 minutes Release date: September 28, 2008
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3. The Barbarian Sublimination

Sheldon creates a monster when he introduces Penny to the world of online gaming. Especially when her addiction wreaks havoc on his life.

Subtitles and Closed Captions Language: English Runtime: 21 minutes Release date: October 5, 2008
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4. The Griffin Equivalency

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.

Subtitles and Closed Captions Language: English Runtime: 21 minutes Release date: October 12, 2008
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5. The Euclid Alternative

Leonard and his friends stage an intervention to make Sheldon confront his longstanding fear of driving.

Subtitles and Closed Captions Language: English Runtime: 19 minutes Release date: October 19, 2008
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6. The Cooper-Nowitzki Theorem

A young grad students attraction to Sheldon confuses everyone including Sheldon himself.

Subtitles and Closed Captions Language: English Runtime: 20 minutes Release date: November 2, 2008
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7. The Panty Pinata Polarization

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.

Subtitles and Closed Captions Language: English Runtime: 21 minutes Release date: November 9, 2008
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8. The Lizard-Spock Expansion

Wolowitz (series regular SIMON HELBERG) thinks he's found the love of his life (guest star SARA RUE) until she meets Leonard.

Subtitles and Closed Captions Language: English Runtime: 20 minutes Release date: November 16, 2008
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9. The White Asparagus Triangulation

Sheldon can barely contain his joy when Leonard starts dating a woman (SARA RUE) who meets Sheldon's exacting standards.

Subtitles and Closed Captions Language: English Runtime: 21 minutes Release date: November 23, 2008
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10. The Vartabedian Conundrum

Leonard just can't say no. When his relationship with new girlfriend, Stephanie starts moving too fast, Leonard turns to Penny for advice.

Subtitles and Closed Captions Language: English Runtime: 21 minutes Release date: December 7, 2008
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11. The Bath Item Gift Hypothesis

Leonards handsome colleague starts dating Penny. And Leonards friends are being tormented by Sheldon's obsession with gift-giving etiquette.

Subtitles and Closed Captions Language: English Runtime: 21 minutes Release date: December 14, 2008
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12. The Killer Robot Instability

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.

Subtitles and Closed Captions Language: English Runtime: 21 minutes Release date: January 11, 2009
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13. The Friendship Algorithm

Socially awkward Sheldon develops a scientific procedure for making friends.

Subtitles and Closed Captions Language: English Runtime: 21 minutes Release date: January 18, 2009
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14. The Financial Permeability

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).

Subtitles and Closed Captions Language: English Runtime: 21 minutes Release date: February 1, 2009
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15. The Maternal Capacitance

A disastrous visit from Mrs. Hofstadter (special guest star CHRISTINE BARANSKI) brings Leonard and Penny closer together.

Subtitles and Closed Captions Language: English Runtime: 20 minutes Release date: February 8, 2009
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16. The Cushion Saturation

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.

Subtitles and Closed Captions Language: English Runtime: 21 minutes Release date: March 1, 2009
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17. The Terminator Decoupling

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.

Subtitles and Closed Captions Language: English Runtime: 21 minutes Release date: March 8, 2009
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18. The Work Song Nanocluster

Penny's home hair products business becomes a complete nightmare when a caffeine-addled Sheldon takes over.

Subtitles and Closed Captions Language: English Runtime: 20 minutes Release date: March 15, 2009
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19. The Dead Hooker Juxtaposition

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."

Subtitles and Closed Captions Language: English Runtime: 20 minutes Release date: March 29, 2009
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20. The Hofstadter Isotope

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.

Subtitles and Closed Captions Language: English Runtime: 20 minutes Release date: April 12, 2009
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21. The Vegas Renormalization

The boys go to Vegas, leaving Sheldon's locked out at home.

Subtitles and Closed Captions Language: English Runtime: 21 minutes Release date: April 26, 2009
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22. The Classified Materials Turbulence

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.

Subtitles and Closed Captions Language: English Runtime: 18 minutes Release date: May 3, 2009
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23. The Monopolar Expedition

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.

Subtitles and Closed Captions Language: English Runtime: 21 minutes Release date: May 10, 2009
Buy Episode 23 HD $2.99

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