8.0
55,623 votes
The Big Bang Theory

The Big Bang Theory

CBS 2007

The sitcom is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress and aspiring actress who lives across the hall; and Leonard and Sheldon's equally geeky and socially awkward friends and co-workers, mechanical engineer Howard Wolowitz and astrophysicist Raj Koothrappali. The geekiness and intellect of the four guys is contrasted for comic effect with Penny's social skills and common sense.

Warning: the following content contains spoilers!

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The 10 Best Episodes of The Big Bang Theory

The Big Bang Theory - S12E24

#1 - The Stockholm Syndrome (Season 12 - Episode 24)

Bernadette and Wolowitz leave their kids for the first time; Penny and Leonard try to keep a secret; Sheldon and Amy stick together; and Koothrappali makes a new friend, as the gang travels together into an uncharted future.

The episode was rated 8.54 from 2611 votes.

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The Big Bang Theory - S2E11

#2 - The Bath Item Gift Hypothesis (Season 2 - Episode 11)

Penny starts dating Leonard's handsome colleague; Leonard and his friends are tortured by Sheldon's obsession with gift-giving etiquette.

The episode was rated 8.38 from 3055 votes.

The Big Bang Theory - S7E9

#3 - The Thanksgiving Decoupling (Season 7 - Episode 9)

An upset Sheldon protests when the entire gang drags him to Mrs. Wolowitz's house for Thanksgiving. Meanwhile, Penny and Leonard must deal with a mistake from her past.

The episode was rated 8.33 from 4911 votes.

The Big Bang Theory - S12E23

#4 - The Change Constant (Season 12 - Episode 23)

Sheldon and Amy await big news.

The episode was rated 8.32 from 3277 votes.

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The Big Bang Theory - S4E24

#5 - The Roommate Transmogrification (Season 4 - Episode 24)

When Bernadette receives her PhD, Wolowitz feels emasculated. Raj and Leonard swap apartments and Penny does something she regrets.

The episode was rated 8.30 from 2726 votes.

The Big Bang Theory - S5E24

#6 - The Countdown Reflection (Season 5 - Episode 24)

As Howard's mission to space approaches, Howard and Bernadette decide to get married before his launch, causing the gang to scurry into overdrive in an effort to stage the wedding.

The episode was rated 8.30 from 2906 votes.

The Big Bang Theory - S5E7

#7 - The Good Guy Fluctuation (Season 5 - Episode 7)

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

The episode was rated 8.28 from 3195 votes.

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The Big Bang Theory - S3E23

#8 - The Lunar Excitation (Season 3 - Episode 23)

While Penny worries that dating Leonard has ruined her for normal guys, Wolowitz and Koothrappali search for Sheldon's perfect match online.

The episode was rated 8.26 from 2702 votes.

The Big Bang Theory - S7E3

#9 - The Scavenger Vortex (Season 7 - Episode 3)

When the entire gang competes in a cutthroat scavenger hunt designed by Raj that tests their science knowledge and street smarts, it brings out the best – and worst – in everyone.

The episode was rated 8.25 from 4987 votes.

The Big Bang Theory - S5E21

#10 - The Hawking Excitation (Season 5 - Episode 21)

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

The episode was rated 8.22 from 2931 votes.

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The Big Bang Theory - S7E6

#11 - The Romance Resonance (Season 7 - Episode 6)

Sheldon's latest scientific breakthrough makes him feel like a fraud – and threatens to haunt him forever. Meanwhile, Howard's romantic gesture to Bernadette causes Penny to step up her game with Leonard.

The episode was rated 8.22 from 4934 votes.

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The Big Bang Theory - S5E14

#12 - The Beta Test Initiation (Season 5 - Episode 14)

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. Meanwhile, Sheldon decides to start a YouTube series entitled "Sheldon Cooper presents Fun with Flags" with the help of Amy.

The episode was rated 8.21 from 2893 votes.

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The Big Bang Theory - S6E21

#13 - The Closure Alternative (Season 6 - Episode 21)

Amy tries to help Sheldon get over his compulsive need for closure when one of his favorite TV shows is canceled; Raj discovers a secret about Lucy.

The episode was rated 8.21 from 3960 votes.

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The Big Bang Theory - S6E23

#14 - The Love Spell Potential (Season 6 - Episode 23)

Amy and Sheldon's relationship takes a surprising turn during a game of "Dungeons & Dragons;" Lucy and Koothrappali have an awkward date.

The episode was rated 8.21 from 3949 votes.

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The Big Bang Theory - S5E23

#15 - The Launch Acceleration (Season 5 - Episode 23)

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.

The episode was rated 8.20 from 2891 votes.

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Last updated: jan 28, 2023

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