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The Big Bang Theory

Prepare to enter the eighth dimension of television's perpetual laughter continuum as THE BIG BANG THEORY boldly crosses the frontiers of science and comedy. Doctors Hofstadter & Cooper remain socially challenged, but the two genius roommates and their friends Penny, Howard, Raj, Amy & Bernadette always produce hilarious results.

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1. The Locomotion Interruption

On the eighth season premiere, Leonard and Amy take an unexpected road trip to Arizona to pick up Sheldon. Meanwhile, Penny interviews for a job at Bernadette's company.

Subtitles and Closed Captions Language: English Runtime: 21 minutes Release date: September 21, 2014
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2. The Junior Professor Solution

When Sheldon (JIM PARSONS) is forced to teach a class, Howard (SIMON HELBERG) surprises everyone by taking it. Guest star REGINA KING returns as Mrs. Davis.

Subtitles and Closed Captions Language: English Runtime: 19 minutes Release date: September 21, 2014
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3. The First Pitch Insufficiency

Howard's nervous when NASA asks him to throw out the first pitch at a game. Also, Leonard & Penny try to prove Sheldon wrong after he claims that he & Amy are a superior couple.

Subtitles and Closed Captions Language: English Runtime: 19 minutes Release date: September 28, 2014
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4. The Hook-Up Reverberation

Raj's honesty about his past comes back to bite him after his girlfriend, is cold to Penny. Meanwhile, the guys consider becoming part-owners in Stuart's comic-book store.

Subtitles and Closed Captions Language: English Runtime: 18 minutes Release date: October 5, 2014
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5. The Focus Attenuation

With the girls away in Vegas for the weekend, the guys try to invent "the next big thing," but only come up with new ways to procrastinate.

Subtitles and Closed Captions Language: English Runtime: 19 minutes Release date: October 12, 2014
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6. The Expedition Approximation

Sheldon and Raj (series star KUNAL NAYYAR) see if they can survive intense heat ��� and each other ��� when they venture deep underground in the name of science.

Subtitles and Closed Captions Language: English Runtime: 21 minutes Release date: October 19, 2014
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7. The Misinterpretation Agitation

The guys try to help Penny out of an awkward work dilemma, when a smitten doctor shows up at her door after her flirtatious sales techniques work a little too well.

Subtitles and Closed Captions Language: English Runtime: 19 minutes Release date: October 29, 2014
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8. The Prom Equivalency

When the gang recreates a high-school prom night on the roof of the guys' apartment building, Sheldon feels pressure to participate in all the typical romantic traditions.

Subtitles and Closed Captions Language: English Runtime: 20 minutes Release date: November 5, 2014
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9. The Septum Deviation

When Leonard gets minor surgery on his nose, Sheldon has a major overreaction. Meanwhile Howard and Bernadette work on their marriage in light of Raj's parents' impending divorce.

Subtitles and Closed Captions Language: English Runtime: 20 minutes Release date: November 12, 2014
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10. The Champagne Reflection

As Sheldon records the final installment of "Fun with Flags," Bernadette is shocked to learn of her co-workers' true feelings from Penny.

Subtitles and Closed Captions Language: English Runtime: 19 minutes Release date: November 19, 2014
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11. The Clean Room Infiltration

Leonard and Howard turn to Raj for help in dealing with a work emergency when they nearly come to blows after blaming each other for a potential disaster at the university.

Subtitles and Closed Captions Language: English Runtime: 19 minutes Release date: December 10, 2014
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12. The Space Probe Disintegration

When the guys finally agree to do something the girls like, it leads to a confrontation between Leonard and Sheldon.

Subtitles and Closed Captions Language: English Runtime: 19 minutes Release date: January 7, 2015
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13. The Anxiety Optimization

Sheldon worries his comfortable lifestyle is preventing him from achieving scientific progress so he asks his friends to make him miserable.

Subtitles and Closed Captions Language: English Runtime: 20 minutes Release date: January 28, 2015
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14. The Troll Manifestation

When an online bully destroys Leonard and Sheldon's physics paper, the guys band together to take him down.

Subtitles and Closed Captions Language: English Runtime: 21 minutes Release date: February 4, 2015
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15. The Comic Book Store Regeneration

Howard receives some shocking news as everyone prepares for the reopening of Stuart's comic book store, and Penny teaches Sheldon how to "let it go."

Subtitles and Closed Captions Language: English Runtime: 20 minutes Release date: February 18, 2015
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16. The Intimacy Acceleration

When the gang hears about an experiment designed to make participants fall in love, Sheldon and Penny put it to the test as a joke.

Subtitles and Closed Captions Language: English Runtime: 20 minutes Release date: February 25, 2015
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17. The Colonization Application

Trouble arises when Amy learns that Sheldon has applied for a one-way mission to colonize Mars.

Subtitles and Closed Captions Language: English Runtime: 20 minutes Release date: March 4, 2015
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18. The Leftover Thermalization

When a magazine incorrectly credits Sheldon as the lead scientist of the paper he co-wrote with Sheldon, things get awkward.

Subtitles and Closed Captions Language: English Runtime: 19 minutes Release date: March 11, 2015
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19. The Skywalker Incursion

When Leonard and Sheldon are invited to speak at UC Berkeley, they take a detour to try to sneak on to George Lucas's Skywalker Ranch to meet their idol.

Subtitles and Closed Captions Language: English Runtime: 21 minutes Release date: April 1, 2015
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20. The Fortification Implementation

Wolowitz is shocked when a man claiming to be his half brother shows up at the front door; and Sheldon & Amy reach a crossroads in their relationship while building a blanket fort.

Subtitles and Closed Captions Language: English Runtime: 19 minutes Release date: April 8, 2015
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21. The Communication Deterioration

Penny contemplates a return to acting, while Raj is tasked with creating a message for NASA in case a mission discovers alien life ��� prompting a fight with the guys.

Subtitles and Closed Captions Language: English Runtime: 18 minutes Release date: April 15, 2015
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22. The Graduation Transmission

Raj faces a threat to his easy lifestyle when he is cut off from the family fortune, while a canceled flight nearly prevents Leonard from speaking at his former high school.

Subtitles and Closed Captions Language: English Runtime: 19 minutes Release date: April 22, 2015
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23. The Maternal Combustion

Personalities collide when Sheldon & Leonard's mothers finally meet. Meanwhile, Howard decides to "man up" and do his fair share of the housework ��� with a little help from his friends.

Subtitles and Closed Captions Language: English Runtime: 18 minutes Release date: April 29, 2015
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24. The Commitment Determination

In the eighth season finale, Sheldon presses Leonard and Penny to choose a date for their wedding, while dealing with dramatic changes in his own relationship with Amy.

Subtitles and Closed Captions Language: English Runtime: 20 minutes Release date: May 6, 2015
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Bonus: The Big Bang Theory Season 8: Trailer

Series director Mark Cendrowski takes the audience on a guided tour of the non-stop action he and the cast endure every week while filming.

Subtitles and Closed Captions Language: English Runtime: 1 minute Release date: September 8, 2014
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