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The Big Bang Theory

Prepare to enter phase nine of television's perpetual laughter experiment as THE BIG BANG THEORY successfully fuses the elements of science and sitcom. Our two genius roommates - Leonard and Sheldon В¬- and their friends are back once again and together, they will all learn that life is far more complicated outside of the lab as love and friendship never produce predictable results!

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1. The Matrimonial Momentum

After driving to Vegas to get married, Penny (KALEY CUOCO-SWEETING) struggles with Leonard's confession that he kissed another girl on the North Sea in the ninth season premiere.

Subtitles and Closed Captions Language: English Runtime: 20 minutes Release date: September 20, 2015
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2. The Separation Oscillation

Leonard confronts the woman he kissed on the North Sea in an attempt to set Penny's mind at ease. And Sheldon tries to retaliate after his breakup with Amy, using "Fun with Flags."

Subtitles and Closed Captions Language: English Runtime: 19 minutes Release date: September 27, 2015
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3. The Bachelor Party Corrosion

The guys surprise Leonard by taking him to Mexico for a belated bachelor party weekend, while the girls force Penny to finally tell her family that she eloped with Leonard.

Subtitles and Closed Captions Language: English Runtime: 19 minutes Release date: October 4, 2015
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4. The 2003 Approximation

When Sheldon (JIM PARSONS) learns of an impending change in his living arrangements, he decides to revert back to 2003 - a simpler time before he met Leonard or Penny.

Subtitles and Closed Captions Language: English Runtime: 18 minutes Release date: October 11, 2015
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5. The Perspiration Implementation

When the guys take fencing lessons from Barry Kripke (JOHN ROSS BOWIE), Sheldon finds himself in an awkward position when Kripke expresses interest in Amy.

Subtitles and Closed Captions Language: English Runtime: 18 minutes Release date: October 18, 2015
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6. The Helium Insufficiency

In the midst of a nationwide helium shortage, Leonard and Sheldon are forced to make a black market purchase from a dealer (MICHAEL RAPAPORT) in order to complete an experiment.

Subtitles and Closed Captions Language: English Runtime: 19 minutes Release date: October 25, 2015
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7. The Spock Resonance

Leonard and Penny are shocked to learn that Sheldon had an engagement ring for Amy. Meanwhile Howard and Bernadette disagree over remodeling his childhood home.

Subtitles and Closed Captions Language: English Runtime: 18 minutes Release date: November 4, 2015
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8. The Mystery Date Observation

With Amy out on a date with a mystery man, Sheldon enlists the help of Howard and Raj to find a new girlfriend by posting online.

Subtitles and Closed Captions Language: English Runtime: 19 minutes Release date: November 11, 2015
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9. The Platonic Permutation

While Howard reluctantly agrees to volunteer at the soup kitchen with Bernadette, Raj and Emily, Sheldon and Amy spend Thanksgiving together at the Aquarium as friends.

Subtitles and Closed Captions Language: English Runtime: 21 minutes Release date: November 18, 2015
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10. The Earworm Reverberation

After driving Leonard and Penny crazy by his desperate attempts to remember the name of a song stuck in his head, Sheldon has a revelation when he realizes why.

Subtitles and Closed Captions Language: English Runtime: 21 minutes Release date: December 9, 2015
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11. The Opening Night Excitation

After more than five years of dating, Sheldon and Amy spend their first night together; BOB NEWHART returns as Sheldon's Obi-Wan to advise him.

Subtitles and Closed Captions Language: English Runtime: 21 minutes Release date: December 16, 2015
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12. The Sales Call Sublimination

Howard and Bernadette experience 'Empty Nest Syndrome" after Stuart moves out, while Penny gets more than she bargained for when Leonard meets with a psychiatrist on her behalf.

Subtitles and Closed Captions Language: English Runtime: 18 minutes Release date: January 6, 2016
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13. The Empathy Optimization

After having to deal with Sheldon being sick, Leonard, Penny and the gang try to treat themselves to a Sheldon free weekend.

Subtitles and Closed Captions Language: English Runtime: 18 minutes Release date: January 13, 2016
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14. The Meemaw Materialization

Sheldon's thrilled when his Meemaw (guest star JUNE SQUIBB) comes to visit, but his excitement quickly fades when she butts heads with Amy.

Subtitles and Closed Captions Language: English Runtime: 18 minutes Release date: February 3, 2016
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15. The Valentino Submergence

Sheldon and Amy host a special, live episode of "Fun with Flags" for Valentine's Day; while Raj is torn between Emily and the new girl he met at the comic book store.

Subtitles and Closed Captions Language: English Runtime: 19 minutes Release date: February 10, 2016
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16. The Positive Negative Reaction

While the gang celebrates Bernadette's pregnancy announcement, Howard freaks out, convinced that he'll need to make more money to provide for the baby.

Subtitles and Closed Captions Language: English Runtime: 19 minutes Release date: February 17, 2016
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17. The Celebration Experimentation

After nine years together, the gang finally celebrates Sheldon's birthday with a few special guests - including Batman's ADAM WEST - on the 200th episode.

Subtitles and Closed Captions Language: English Runtime: 18 minutes Release date: February 24, 2016
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18. The Application Deterioration

Howard has second thoughts about entering into a legal partnership with Leonard and Sheldon for a patent, while Raj gets dating advice from the girls after his breakup with Emily.

Subtitles and Closed Captions Language: English Runtime: 19 minutes Release date: March 9, 2016
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19. The Soldier Excursion Diversion

Amy is shocked at a revelation from Sheldon after she buys him a new laptop; Meanwhile, Leonard and Howard lie to their wives to attend an early screening of a movie.

Subtitles and Closed Captions Language: English Runtime: 20 minutes Release date: March 30, 2016
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20. The Big Bear Precipitation

Sheldon spills a secret of Leonard's on a weekend cabin trip they take with Penny and Amy; and Howard and Bernadette must draw the line when Raj goes overboard with pregnancy gifts.

Subtitles and Closed Captions Language: English Runtime: 18 minutes Release date: April 6, 2016
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21. The Viewing Party Combustion

When a small argument between Leonard and Sheldon erupts into a heated fight, everyone must take sides during a group get-together.

Subtitles and Closed Captions Language: English Runtime: 18 minutes Release date: April 20, 2016
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22. The Fermentation Bifurcation

Sheldon and Bernadette spend a night hanging out together when the rest of the gang go to a wine bar, where they run into Penny's old boyfriend, Zack (BRIAN THOMAS SMITH).

Subtitles and Closed Captions Language: English Runtime: 19 minutes Release date: April 27, 2016
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23. The Line Substitution Solution

Penny struggles to bond with Leonard's mother when she comes for a visit. Meanwhile, Sheldon hires Stuart to spend the day with Amy while he's at a movie screening.

Subtitles and Closed Captions Language: English Runtime: 18 minutes Release date: May 4, 2016
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24. The Convergence Convergence

Chaos ensues in the season nine finale when Leonard's recently divorced parents (JUDD HIRSCH and CHRISTINE BARANSKI) and Sheldon's devoutly religious mother come to town.

Subtitles and Closed Captions Language: English Runtime: 19 minutes Release date: May 11, 2016
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Bonus: The Big Bang Theory: 2015 Comic-Con Panel (EST)

Comic-Con Writer's Panel

Subtitles and Closed Captions Language: English Runtime: 26 minutes Release date: August 24, 2015
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