Watch The Big Bang Theory Online

TV-14 CBS 22m 2006 8.3

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The Big Bang Theory

A woman who moves into an apartment across the hall from two brilliant but socially awkward physicists shows them how little they know about life outside of the laboratory.


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Genres: Comedy, Romance

Stars: Johnny Galecki Jim Parsons Kaley Cuoco Simon Helberg Kunal Nayyar Melissa Rauch

Creators: Chuck Lorre Bill Prady

The Big Bang Theory Full Episodes

S9 E1: The Matrimonial Momentum

Aired: September 21st, 2015 @ 7:00 PM CST

Sheldon is confronted by a mystery of the universe he cannot unravel: when a woman wants time apart to think, exactly how much time does that mean, and is there any way to hurry the process along?...


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S9 E2: The Separation Oscillation

Aired: September 28th, 2015 @ 7:00 PM CST

Leonard confronts the woman he kissed on the North Sea in an attempt to set Penny’s mind at ease. Also, Sheldon films a special episode of “Fun with Flags” after his breakup with Amy, and...


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S9 E3: The Bachelor Party Corrosion

Aired: October 5th, 2015 @ 7:00 PM CST

The guys’ science skills are put to the test when they get a flat tire during Leonard’s bachelor party weekend in Mexico. Also, the girls force Penny to finally tell her family that she eloped with...


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S9 E4: The 2003 Approximation

Aired: October 12th, 2015 @ 7:00 PM CST

Leonard and Penny finally move in together leaving Sheldon very upset with this big change in his life and wishing he could go back to a time when he had no emotions in 2003 before he met Leonard....


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S9 E5: The Perspiration Implementation

Aired: October 19th, 2015 @ 7:00 PM CST

The guys take a fencing lesson from Barry Kripke and Sheldon finds himself in an awkward position when Kripke expresses interest in Amy. Also, when Stuart struggles to get female customers at the...


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S9 E6: The Helium Insufficiency

Aired: October 26th, 2015 @ 7:00 PM CST

In the midst of a nation-wide helium shortage, Sheldon and Leonard take desperate measures to get the supplies they need. Also, Penny and Bernadette download a dating app on Amy's phone to try and...


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S9 E7: The Spock Resonance

Aired: November 5th, 2015 @ 7:00 PM CST

Wil Wheaton interviews Sheldon for a Star Trek documentary where he reveals the ring and his plan to propose to Amy. Bernadette wants to start renovating the house and the topic of starting a...


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S9 E8: The Mystery Date Observation

Aired: November 12th, 2015 @ 7:00 PM CST

Amy has a formal date which Leonard, Penny and Bernadette secretly spy on. Sheldon has Howard and Raj help him find a new girlfriend since they found Amy for him.


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S9 E9: The Platonic Permutation

Aired: November 19th, 2015 @ 7:00 PM CST

It’s Thanksgiving. Sheldon and Amy go on a lunch date to the aquarium as friends. Howard, Bernadette, Raj and Emily help out at a soup kitchen. Leonard and Penny make their first Thanksgiving...


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S9 E10: The Earworm Reverberation

Aired: December 10th, 2015 @ 7:00 PM CST

Sheldon has a revelation when he realizes why a song was stuck in his head. Also, Amy invites Dave over for dinner despite their previously awkward date, and Wolowitz and Koothrappali become...


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S9 E11: The Opening Night Excitation

Aired: December 17th, 2015 @ 7:00 PM CST

As the guys prepare to go to the premiere of the new Star Wars movie, Sheldon plans a special event for Amy's birthday.


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S9 E12: The Sales Call Sublimation

Aired: January 7th, 2016 @ 7:00 PM CST

Leonard visits a psychiatrist so Penny can make a sales call. Stuart moves out of the Wolowitz house. Sheldon works with Raj looking for extra-solar planets.


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S9 E13: The Empathy Optimization

Aired: January 14th, 2016 @ 7:00 PM CST

The gang decides to head to Vegas for the week on a party bus. Sheldon learns about the importance of empathy and saying sorry.


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S9 E14: The Meemaw Materialization

Aired: February 4th, 2016 @ 7:00 PM CST

Sheldon is thrilled when his Meemaw comes to visit, but his excitement quickly fades when she butts heads with Amy. Also, Raj meets a new girl at the comic book store who makes him question his...


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S9 E15: The Valentino Submergence

Aired: February 11th, 2016 @ 7:00 PM CST

Sheldon and Amy host a live Valentine's Day episode of Fun with Flags, Leonard and Penny grapple with getting older, Howard and Bernadette find a surprise in their hot tub and Raj is torn between...


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S9 E16: The Positive Negative Reaction

Aired: February 18th, 2016 @ 7:00 PM CST

When the gang finds out about Bernadette's pregnancy, they celebrate by singing karaoke. Also, Bernadette is concerned when Wolowitz freaks out over her pregnancy announcement, and Wolowitz is...


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S9 E17: The Celebration Experimentation

Aired: February 25th, 2016 @ 7:00 PM CST

After more than nine years together, the gang finally celebrates Sheldon’s birthday, surprising him with a special guest (Adam West).


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S9 E18: The Application Deterioration

Aired: March 10th, 2016 @ 7:00 PM CST

Sheldon works up a contract to split their portion of their guidance system invention royalties, but Bernadette does not like how it's done. Raj must again decide between Emily and Claire when they...


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S9 E19: The Solder Excursion Diversion

Aired: March 31st, 2016 @ 7:00 PM CST

Amy is shocked at a revelation from Sheldon after she buys him a new laptop. Koothrappali sells out Leonard and Wolowitz after they lie to their wives in order to attend an early screening of a...


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S9 E20: The Big Bear Precipitation

Aired: April 7th, 2016 @ 7:00 PM CST

Secrets are revealed when Amy and Sheldon join Penny and Leonard on a weekend cabin trip. Raj is more excited about Howard's and Bernadette's impending parenthood than they are.


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S9 E21: The Viewing Party Combustion

Aired: April 21st, 2016 @ 7:00 PM CST

Everyone must choose sides when a small argument between Leonard and Sheldon erupts into a heated fight during a group get-together.


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S9 E22: The Fermentation Bifurcation

Aired: April 28th, 2016 @ 7:00 PM CST

Sheldon and Bernadette spend a night together while the rest of the gang goes to a wine tasting party, but things get uncomfortable for Raj when Zack also attends and takes an interest in...


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S9 E23: The Line Substitution Solution

Aired: May 5th, 2016 @ 7:00 PM CST

Sheldon hires Stuart to spend the day with Amy when he’d rather go to a movie screening. Also, Leonard’s mother, Beverly, comes to town and Penny struggles to make a connection with her.


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S9 E24: The Convergence Convergence

Aired: May 12th, 2016 @ 7:00 PM CST

Leonard and Penny get remarried in front of their friends (who show up), Leonard's parents, Beverly and Alfred (Judd Hirsch) and Sheldon's mother, Mary, who finds something in common with Alfred....


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