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Watch The Big Bang Theory Season 9 English Online Free

6.9 Rated 6.9/10 (1050 votes)

Watch The Big Bang Theory S9E1 in English Online Free | HD
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WATCH 6.3

The Matrimonial Momentumclose

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 after Amy pushes pause on their relationship.

Watch The Big Bang Theory S9E2 in English Online Free | HD
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WATCH 8.5

The Separation Oscillationclose

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 Bernadette feels guilty about withholding a secret from Penny.

Watch The Big Bang Theory S9E3 in English Online Free | HD
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WATCH 9

The Bachelor Party Corrosionclose

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 Leonard.

Watch The Big Bang Theory S9E4 in English Online Free | HD
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WATCH 8.3

The 2003 Approximationclose

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. Also, Howard and Raj form a band to play at the Comic Book Store.

Watch The Big Bang Theory S9E5 in English Online Free | HD
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WATCH 5.6

The Perspiration Implementationclose

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 Comic Book Store, Penny, Amy and Bernadette come by to help him out.

Watch The Big Bang Theory S9E6 in English Online Free | HD
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WATCH 7.5

The Helium Insufficiencyclose

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 find her a new man.

Watch The Big Bang Theory S9E7 in English Online Free | HD
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WATCH 8.5

The Spock Resonanceclose

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 family together with Howard is brought up.

Watch The Big Bang Theory S9E8 in English Online Free | HD
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WATCH 7.5

The Mystery Date Observationclose

Sheldon, Wolowitz and Koothrappali post an online advertisement to find Sheldon a new girlfriend. Also, when Amy is coy with details about a guy she is dating, Penny and Bernadette decide to spy

Watch The Big Bang Theory S9E9 in English Online Free | HD
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WATCH 8

The Platonic Permutationclose

Sheldon and Amy try hanging out as friends when they spend Thanksgiving together at the aquarium. Also, Wolowitz reluctantly agrees to volunteer at the soup kitchen with Bernadette, Raj and Emily, and Penny discovers that Leonard knows more about her than she thought.

Watch The Big Bang Theory S9E10 in English Online Free | HD
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WATCH 9

The Earworm Reverberationclose

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 obsessed with a fan of their band, "Footprints on the Moon".

Watch The Big Bang Theory S9E11 in English Online Free | HD
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WATCH 9.5

The Opening Night Excitationclose

After more than five years of dating, Sheldon and Amy spend their first night together. Also, Leonard, Wolowitz, and Koothrappali must decide who will take their extra Star Wars movie ticket.

Watch The Big Bang Theory S9E12 in English Online Free | HD
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WATCH 8.3

The Sales Call Sublimationclose

Penny gets more than she bargained for when Leonard agrees to meet with a psychiatrist on her behalf. Also, Sheldon and Koothrappali collaborate on an astronomical discovery, and Wolowitz and Bernadette can't believe what they are feeling after Stuart moves out.

Watch The Big Bang Theory S9E13 in English Online Free | HD
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WATCH 8

The Empathy Optimizationclose

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

Watch The Big Bang Theory S9E14 in English Online Free | HD
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WATCH 7.3

The Meemaw Materializationclose

Meemaw meets Amy, but it isn't all roses. Meemaw seems to have an axe to grind with her. Sheldon comes to Amy's defense, but not before Meemaw lets a little secret of his slip.

Watch The Big Bang Theory S9E15 in English Online Free | HD
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WATCH 7.9

The Valentino Submergenceclose

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 Emily and the cute girl he met at the Comic Bookstore.

Watch The Big Bang Theory S9E16 in English Online Free | HD
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WATCH 6.8

The Positive Negative Reactionclose

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 convinced he must make more money to provide for the baby.

Watch The Big Bang Theory S9E17 in English Online Free | HD
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WATCH 5.8

The Celebration Experimentationclose

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

Watch The Big Bang Theory S9E18 in English Online Free | HD
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WATCH 8.5

The Application Deteriorationclose

Leonard, Sheldon, and Wolowitz run into problems when they file for a patent for their infinite persistence gyroscope. Also, Penny, Amy and Bernadette give Koothrappali dating advice when Emily reaches out to him after their breakup.

Watch The Big Bang Theory S9E19 in English Online Free | HD
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WATCH 7.3

The Solder Excursion Diversionclose

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 their wives in order to attend an early screening of a movie.

Watch The Big Bang Theory S9E20 in English Online Free | HD
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WATCH 7.7

The Big Bear Precipitationclose

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 pregnancy gifts, Wolowitz and Bernadette must draw the line.

Watch The Big Bang Theory S9E21 in English Online Free | HD
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WATCH 7.7

The Viewing Party Combustionclose

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

Watch The Big Bang Theory S9E22 in English Online Free | HD
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WATCH 6.7

The Fermentation Bifurcationclose

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 go wine tasting with the group, and things don’t go as planned when Koothrappali introduces his new girlfriend, Claire.

Watch The Big Bang Theory S9E23 in English Online Free | HD
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WATCH 7.3

The Line Substitution Solutionclose

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.

Watch The Big Bang Theory S9E24 in English Online Free | HD
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WATCH 7.6

The Convergence Convergenceclose

Chaos ensues when Leonard’s recently divorced parents, Alfred and Beverly, and Sheldon’s devoutly religious mother, Mary, come to town. Also, Wolowitz and Koothrappali think the government is out to get them when they are contacted about their guidance system.

Watch The Big Bang Theory (2007) in English Online Free | 720p BrRip x264

Seasons

Watch The Big Bang Theory Season 1 in English Online Free Season 1
(17 Episodes)
2007-09-24
Watch The Big Bang Theory Season 2 in English Online Free Season 2
(23 Episodes)
2008-09-22
Watch The Big Bang Theory Season 3 in English Online Free Season 3
(23 Episodes)
2009-09-21
Watch The Big Bang Theory Season 4 in English Online Free Season 4
(24 Episodes)
2010-09-23
Watch The Big Bang Theory Season 5 in English Online Free Season 5
(24 Episodes)
2011-09-22
Watch The Big Bang Theory Season 6 in English Online Free Season 6
(24 Episodes)
2012-09-27
Watch The Big Bang Theory Season 7 in English Online Free Season 7
(24 Episodes)
2013-09-25
Watch The Big Bang Theory Season 8 in English Online Free Season 8
(24 Episodes)
2014-09-22
Watch The Big Bang Theory Season 9 in English Online Free Season 9
(24 Episodes)
2015-09-21
Watch The Big Bang Theory Season 10 in English Online Free Season 10
(17 Episodes)
2016-09-19