The Big Bang Theory Season 9 Watch The Big Bang Theory Episodes online

Watch The Big Bang Theory Season 9 episodes online  

View episodes from : Season 1 (17)   |   Season 2 (23)   |   Season 3 (23)   |   Season 4 (24)   |   Season 5 (24)   |   Season 6 (24)   |   Season 7 (24)   |   Season 8 (24)   |   Season 9 (24)   |   Season 10 (24)   |   Season 11 (11)   |  

The Big Bang Theory season 9 episode 1Episode 1: The Matrimonial Momentum

After driving to Vegas to get married, Penny struggles with Leonard's confession that he kissed another girl. Also, Sheldon doesn't know how to act...

Air Date: Sep 21, 2015


The Big Bang Theory season 9 episode 2Episode 2: The Separation Oscillation

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 wit...

Air Date: Sep 28, 2015


The Big Bang Theory season 9 episode 3Episode 3: The Bachelor Party Corrosion

The guys surprise Leonard with a belated bachelor-party weekend in Mexico, but their plans hit a bump in the road when they get a flat tire on the ...

Air Date: Oct 05, 2015


The Big Bang Theory season 9 episode 4Episode 4: The 2003 Approximation

Sheldon learns of an impending change in his living arrangements and decides to revert back to 2003, a simpler time before he met Leonard and Penny...

Air Date: Oct 12, 2015


The Big Bang Theory season 9 episode 5Episode 5: The Perspiration Implementation

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...

Air Date: Oct 19, 2015


The Big Bang Theory season 9 episode 6Episode 6: The Helium Insufficiency

In the midst of a nation-wide helium shortage, Sheldon and Leonard take desperate measures to get the supplies they need. Also, Penny and Bernadett...

Air Date: Oct 26, 2015


The Big Bang Theory season 9 episode 7Episode 7: The Spock Resonance

While being interviewed for a documentary about Spock from "Star Trek," Sheldon struggles to suppress his emotions about his recent break-up with...

Air Date: Nov 05, 2015


The Big Bang Theory season 9 episode 8Episode 8: The Mystery Date Observation

When Leonard, Penny and Bernadette learn that Amy is going out on a dinner date, the trio set out to spy on her and the guy. Meanwhile, Sheldon rec...

Air Date: Nov 12, 2015


The Big Bang Theory season 9 episode 9Episode 9: The Platonic Permutation

Sheldon and Amy try hanging out as friends when they spend Thanksgiving together at the aquarium. Also, Wolowitz reluctantly agrees to volunteer at...

Air Date: Nov 19, 2015


The Big Bang Theory season 9 episode 10Episode 10: The Earworm Reverberation

Over for dinner despite their previously awkward date, and Wolowitz and Koothrappali become obsessed with a fan of their band, "Footprints on the M...

Air Date: Dec 10, 2015


The Big Bang Theory season 9 episode 11Episode 11: The Opening Night Excitation

After more than five years of dating, Sheldon and Amy spend their first night together. Also, Leonard, Wolowitz, and Koothrappali must decide who w...

Air Date: Dec 17, 2015


The Big Bang Theory season 9 episode 12Episode 12: The Sales Call Sublimation

Penny gets more than she bargained for when Leonard agrees to meet with a psychiatrist on her behalf. Also, Sheldon and Koothrappali collaborate on...

Air Date: Jan 07, 2016


The Big Bang Theory season 9 episode 13Episode 13: The Empathy Optimization

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

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Air Date: Jan 14, 2016


The Big Bang Theory season 9 episode 14Episode 14: The Meemaw Materialization

Sheldon's 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 ...

Air Date: Feb 04, 2016


The Big Bang Theory season 9 episode 15Episode 15: The Valentino Submergence

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 s...

Air Date: Feb 11, 2016


The Big Bang Theory season 9 episode 16Episode 16: The Positive Negative Reaction

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

Air Date: Feb 18, 2016


The Big Bang Theory season 9 episode 17Episode 17: The Celebration Experimentation

After more than nine years together, the gang finally celebrates Sheldon's birthday, surprising him with a special guest.

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Air Date: Feb 25, 2016


The Big Bang Theory season 9 episode 18Episode 18: The Application Deterioration

Leonard, Sheldon, and Wolowitz run into problems when they file for a patent for their infinite persistence gyroscope. Also, Penny, Amy and Bernade...

Air Date: Mar 10, 2016


The Big Bang Theory season 9 episode 19Episode 19: The Solder Excursion Diversion

Amy is shocked at a revelation from Sheldon after she buys him a new laptop. Also, Koothrappali sells out Leonard and Wolowitz after they lie to ...

Air Date: Mar 31, 2016


The Big Bang Theory season 9 episode 20Episode 20: The Big Bear Precipitation

Sheldon spills a secret of Leonard's when the two take a weekend cabin trip with Penny and Amy. Also, when Koothrappali goes overboard with pregnan...

Air Date: Apr 07, 2016


The Big Bang Theory season 9 episode 21Episode 21: The Viewing Party Combustion

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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Air Date: Apr 21, 2016


The Big Bang Theory season 9 episode 22Episode 22: The Fermentation Bifurcation

The gang goes to a wine bar and runs into Penny's old boyfriend, Zack. Also, Bernadette gets stuck spending the evening with Sheldon when she can't...

Air Date: Apr 28, 2016


The Big Bang Theory season 9 episode 23Episode 23: The Line Substitution Solution

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 s...

Air Date: May 05, 2016


The Big Bang Theory season 9 episode 24Episode 24: The Convergence Convergence

Chaos ensues when Leonard's recently divorced parents, Alfred and Beverly, and Sheldon's devoutly religious mother, Mary, come to town. Also, Wolow...

Air Date: May 12, 2016