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Watch The Big Bang Theory Season 5 English Online Free

6.9 Rated 6.9/10 (921 votes)

Watch The Big Bang Theory S5E1 in English Online Free | HD
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WATCH 4.8

The Skank Reflex Analysisclose

Penny is worried with how damaged her friendship with the guys will be in the aftermath of her sleeping with Raj while Sheldon becomes the leader of the paintball team.

Watch The Big Bang Theory S5E2 in English Online Free | HD
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WATCH 6.5

The Infestation Hypothesisclose

A fight between Sheldon and Penny leaves Amy caught in the middle, while Leonard tries to spice up his long-distance relationship with Priya.

Watch The Big Bang Theory S5E3 in English Online Free | HD
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WATCH 6.9

The Pulled Groin Extrapolationclose

Leonard and Amy get to know each other better, while Howard and Bernadette spend the weekend with Mrs. Wolowitz.

Watch The Big Bang Theory S5E4 in English Online Free | HD
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WATCH 6.7

The Wiggly Finger Catalystclose

Penny plays Matchmaker for Raj, which results in him finding a girl he is comfortable talking to.

Watch The Big Bang Theory S5E5 in English Online Free | HD
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WATCH 7

The Russian Rocket Reactionclose

Sheldon and Leonard get invited to a party at Wil Wheaton's house, and Howard gets an out-of-this-world opportunity.

Watch The Big Bang Theory S5E6 in English Online Free | HD
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WATCH 6.5

The Rhinitis Revelationclose

Sheldon's mother, Mary Cooper, comes to visit, but Sheldon is annoyed that she also spends time with the rest of the gang, instead of catering to his every demand.

Watch The Big Bang Theory S5E7 in English Online Free | HD
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WATCH 6.7

The Good Guy Fluctuationclose

A cute comic book artist puts Leonard and Priya’s relationship to the test, while Sheldon tries to scare the guys for Halloween.

Watch The Big Bang Theory S5E8 in English Online Free | HD
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WATCH 7.3

The Isolation Permutationclose

Amy becomes heartbroken when she discovers that Penny and Bernadette went wedding dress shopping without her.

Watch The Big Bang Theory S5E9 in English Online Free | HD
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WATCH 7

The Ornithophobia Diffusionclose

Leonard and Penny try hanging out as friends on a 'non-date', but end up purposely ruining each others chances with perspective dates. Meanwhile, Sheldon enlists the help of Bernadette and Amy to overcome his fear of birds.

Watch The Big Bang Theory S5E10 in English Online Free | HD
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WATCH 5

The Flaming Spittoon Acquisitionclose

"The Flaming Spittoon Acquisition" is the tenth episode of the fifth season of The Big Bang Theory that first aired on CBS on November 17, 2011. It is the ninety-seventh episode overall.

Watch The Big Bang Theory S5E11 in English Online Free | HD
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WATCH 7

The Speckerman Recurrenceclose

Leonard must face his fears after being contacted by his high school tormentor.

Watch The Big Bang Theory S5E12 in English Online Free | HD
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WATCH 6.5

The Shiny Trinket Maneuverclose

Sheldon gets in trouble with Amy when he isn't impressed by her recent accomplishment, and Howard must come to grips with Bernadette's dislike of children.

Watch The Big Bang Theory S5E13 in English Online Free | HD
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WATCH 7.3

The Recombination Hypothesisclose

Leonard, who broke up with Priya, asks Penny out to a spur-of the-moment romantic dinner for two, and the duo contemplates on their relationship.

Watch The Big Bang Theory S5E14 in English Online Free | HD
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WATCH 6.3

The Beta Test Initiationclose

Leonard and Penny deal with the idea of starting a relationship again and Raj finally finds a "woman" he can talk to without being drunk, in the form of Siri on his new phone. Meanwhile, Sheldon decides to start a YouTube series entitled "Sheldon Cooper presents Fun with Flags" with the help of Amy.

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WATCH 7

The Friendship Contractionclose

Sheldon's selfish demands force Leonard to reconsider their friendship. Meanwhile, Wolowitz tries to pick his astronaut nickname.

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WATCH 6.5

The Vacation Solutionclose

When Sheldon is forced to take his vacation, he goes to work with Amy in her neurobiology lab.

Watch The Big Bang Theory S5E17 in English Online Free | HD
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WATCH 7

The Rothman Disintegrationclose

Penny is horrified when Amy gives her a gift: a huge, quite horrible painting of the two of them. With no good way to avoid displaying it, she only hangs it up when Amy is over. When Amy catches her taking the painting down, she's embarrassed and angry until Penny lies and says the gift made Bernadette jealous. When the deranged Professor Rothman is forced to retire, both Sheldon and Kripke vie for his office. President Siebert refuses to resolve the dispute, so Leonard arranges a one-on-one basketball game to decide (since they're both equally bad at sports). Neither one can even make a single basket, so they end up deciding by seeing who can bounce the ball the highest. Sheldon wins; unfortunately, the office is not what he'd hoped for: the thermostat is located in the office of a professor going through the hot flashes of menopause (thus Sheldon is too cold), the mockingbird outside his window is off-key with the annoying windchimes, the perpetually naked Professor Rothman refuses to vacate, and the Geology Department upstairs makes too much noise. Finally, Sheldon gets his head stuck in the wall in an existing hole, after which Leonard takes his picture before he goes for help.

Watch The Big Bang Theory S5E18 in English Online Free | HD
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WATCH 7.5

The Werewolf Transformationclose

Sheldon becomes agitated when his regular barber is out sick. Astronaut training causes Howard to reconsider wanting to go into space. Penny beats Leonard in chess, the first time she plays.

Watch The Big Bang Theory S5E19 in English Online Free | HD
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WATCH 7.2

The Weekend Vortexclose

Sheldon must choose between joining Amy at her aunt's birthday party or playing videogames all weekend with the guys.

Watch The Big Bang Theory S5E20 in English Online Free | HD
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WATCH 7.2

The Transporter Malfunctionclose

Penny buys Leonard and Sheldon “Star Trek” collectibles as a thank-you, leading Sheldon to be haunted by Mr. Spock. Meanwhile, Raj decides he has met the “Future Mrs. Koothrappali” after his parents set him up on a date.

Watch The Big Bang Theory S5E21 in English Online Free | HD
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WATCH 6.8

The Hawking Excitationclose

When Wolowitz gets to work with Stephen Hawking, Sheldon is willing to do anything to meet his hero.

Watch The Big Bang Theory S5E22 in English Online Free | HD
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WATCH 7.3

The Stag Convergenceclose

After the guys throw Howard a bachelor party, Bernadette reconsiders marrying him after learning about his sexual history.

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WATCH 6.7

The Launch Accelerationclose

When NASA moves up Howard's mission, he must face his fears and Bernadette's dad, thus putting the wedding plans in jeopardy. Meanwhile, Leonard says something surprising to Penny in the bedroom.

Watch The Big Bang Theory S5E24 in English Online Free | HD
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WATCH 7.7

The Countdown Reflectionclose

The fifth season ends with Howard and Bernadette deciding to get married before his NASA mission, causing the gang to scurry into overdrive in an effort to stage the wedding. NASA astronaut Mike Massimino has a cameo as himself.

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)
2015-01-05
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
(13 Episodes)
2016-09-19