The Big Bang Theory

10 Best Episodes of The Big Bang Theory - Season 8

The Big Bang Theory, which aired on CBS from 2007 to 2019, is one of the most popular sitcoms of all time. The show centers on five characters living in Pasadena, California and features the geekiness and intellect of Leonard Hofstadter, Sheldon Cooper, Howard Wolowitz and Raj Koothrappali contrasted with the common sense and social skills of Penny. With 13 seasons of content, fans have plenty of episodes to choose from. Here we will rank the best episodes of The Big Bang Theory and discuss why they are so popular.

The Big Bang Theory is renowned for its clever writing and witty dialogue. The show explores a variety of topics, ranging from relationships and romance to science and technology. It also features a number of recurring jokes and cultural references. All of these elements combine to make The Big Bang Theory an entertaining and memorable show.

Given the show’s long run, it’s no surprise that it has featured some truly outstanding episodes over the years. In this article, we’ll be taking a look at some of the best episodes of The Big Bang Theory and discussing why they are so highly ranked. From heartfelt moments to laugh-out-loud comedy, these episodes are sure to please any fan of the show.

Written by Sophie and last updated on jul 14, 2024.

PS: The following content contains spoilers!

PPS: I will admit that parts of this page was written with the help of AI - it makes my work so much easier to not start from a blank page!

The Big Bang Theory - S8E3

#15 - The First Pitch Insufficiency (Season 8 - Episode 3)

Wolowitz feels nervous when he is asked by NASA to throw the first pitch at a Los Angeles Angels game; Penny and Leonard want to prove Sheldon wrong after he says he and Amy are the better couple.

The episode was rated 7.66 from 5157 votes.

The Big Bang Theory - S8E1

#14 - The Locomotion Interruption (Season 8 - Episode 1)


Leonard and Amy make an unexpected trip to Arizona to bring Sheldon home; Penny interviews for a job at Bernadette's company; Stuart's relationship with Mrs. Wolowitz disturbs Howard.

The episode was rated 7.66 from 5695 votes.

The Big Bang Theory - S8E17

#13 - The Colonization Application (Season 8 - Episode 17)

Trouble arises when Amy learns Sheldon has applied for a one-way mission to colonize Mars. Also, a trip to the pet store ends in a fight for Sheldon and Amy, Leonard surprises Penny with a very “adult” purchase, and Raj is caught snooping in Emily’s apartment.

The episode was rated 7.66 from 4427 votes.

The Big Bang Theory - S8E15

#12 - The Comic Book Store Regeneration (Season 8 - Episode 15)


Wolowitz receives some shocking news as everyone prepares for the reopening of Stuart’s comic book store. Penny teaches Sheldon how to “let it go,” but can’t follow her own advice after she learns something infuriating about Amy. Also, Leonard and Raj think they've spotted Nathan Fillion at a restaurant.

The episode was rated 7.68 from 3952 votes.

The Big Bang Theory - S8E16

#11 - The Intimacy Acceleration (Season 8 - Episode 16)

As a joke, Sheldon and Penny try an experiment designed to make participants fall in love. Also, Leonard, Amy, Raj and Emily spend the evening trying to escape a room with a “zombie.” And, after returning from Mrs. Wolowitz’ funeral, Bernadette and Howard run into trouble at the airport.

The episode was rated 7.68 from 4051 votes.

The Big Bang Theory - S8E6

#10 - The Expedition Approximation (Season 8 - Episode 6)


Sheldon and Raj test whether they could survive a dark-matter research expedition in a salt mine by simulating the conditions in a steam tunnel deep underground. Leonard and Penny seek advice from Howard and Bernadette after they fight about money.

The episode was rated 7.68 from 4974 votes.

The Big Bang Theory - S8E4

#9 - The Hook-Up Reverberation (Season 8 - Episode 4)

Raj's honesty comes back to haunt him when his new girlfriend is unfriendly to Penny; the guys think about becoming part owners in Stuart's store.

The episode was rated 7.68 from 5161 votes.

The Big Bang Theory - S8E11

#8 - The Clean Room Infiltration (Season 8 - Episode 11)


Leonard and Howard turn to Raj for help in dealing with a work emergency when they nearly come to blows after blaming each other for a potential disaster at the university. Amy throws an authentic Victorian Christmas party, while Sheldon seeks revenge on her for making him celebrate the holidays.

The episode was rated 7.71 from 4795 votes.

The Big Bang Theory - S8E24

#7 - The Commitment Determination (Season 8 - Episode 24)

Sheldon pushes Leonard and Penny to choose a date for their wedding and deals with dramatic changes in his own relationship with Amy.

The episode was rated 7.78 from 4762 votes.

The Big Bang Theory - S8E5

#6 - The Focus Attenuation (Season 8 - Episode 5)


During their weekend in Las Vegas, Bernadette and Amy accuse Penny of being a buzz kill; the guys try to invent the next big thing, but only succeed in procrastination.

The episode was rated 7.78 from 5146 votes.

The Big Bang Theory - S8E14

#5 - The Troll Manifestation (Season 8 - Episode 14)

Leonard and Sheldon publish a paper which is widely accepted except for comments from an internet troll. Meanwhile, the girls reminisce about embarassing incidents from their past.

The episode was rated 7.79 from 3746 votes.

The Big Bang Theory - S8E9

#4 - The Septum Deviation (Season 8 - Episode 9)


When Leonard gets minor surgery on his nose, Sheldon is the one in need of sympathy. Meanwhile, Raj's parents' impending divorce causes Howard and Bernadette to work on their own marriage.

The episode was rated 7.79 from 5084 votes.

The Big Bang Theory - S8E7

#3 - The Misinterpretation Agitation (Season 8 - Episode 7)

The guys try to help Penny out of an awkward work dilemma, when a smitten doctor shows up at her door after her flirtatious sales techniques work a little too well. Meanwhile, Amy and Bernadette argue over whether or not female scientists should play up their sexuality.

The episode was rated 7.80 from 5054 votes.

The Big Bang Theory - S8E2

#2 - The Junior Professor Solution (Season 8 - Episode 2)


When Sheldon must teach a class, Howard decides to take it; Amy takes advantage of the tension between Penny and Bernadette by playing both sides.

The episode was rated 7.88 from 5439 votes.

The Big Bang Theory - S8E8

#1 - The Prom Equivalency (Season 8 - Episode 8)

When the gang recreates a high school prom night on the roof of the guys' apartment building, Sheldon feels pressure to participate in all the typical romantic traditions.

The episode was rated 7.94 from 5171 votes.

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