Which are the Halloween episodes of The Big Bang Theory?

Last Modified Jun 6, 2025 09:18 EDT
What episode of the Big Bang Theory is Halloween?
The Big Bang Theory (Source: Instagram)


The Big Bang Theory has various Halloween-themed episodes such as, “The Good Guy Fluctuation”, “The Imitation Perturbation” and more.


The Big Bang Theory is one of the most famous sitcoms in America and around the world. While the series is filled with hilarious episodes, the show makers, like all sitcoms, have made their own versions of holiday episodes, including various national days like Valentine's Day, Christmas, New Year's, and more. The series also includes Halloween-themed episodes.


Halloween Episodes on The Big Bang Theory


During The Big Bang Theory’s 12-season run, we have seen four Halloween-themed episodes. Here are the details regarding each Halloween episode that has occurred in the series.


1: The Middle Earth Paradigm


What episode of the Big Bang Theory is Halloween?
A still from The Big Bang Theory (Source: Instagram)


The episode was aired as the sixth episode of The Big Bang Theory's Season One. This is one of the most memorable episodes as it marks Leonard and Penny’s first kiss in the series. Apart from this, we also see Sheldon, Raj, and Howard crack jokes to fit in with Penny’s friends during the Halloween party.


2: The Good Guy Fluctuation


What episode of the Big Bang Theory is Halloween?
Leonard in The Big Bang Theory (Source: Instagram)


This episode was aired as the 7th episode of The Big Bang Theory's Season Five. This episode shows the end of the relationship between Leonard and his girlfriend Priya. It is in this episode that Leonard learns that his long-distance girlfriend Priya cheated on him by having sex with her ex-boyfriend.


3: The Holographic Excitation


What episode of the Big Bang Theory is Halloween?
Howard and Bernadette dressed as smurfs (Source: Screengrab from the show)


The Holographic Excitation was the 5th episode of The Big Bang Theory's Season Six. This episode shows a deeper insight into how much Penny is into Leonard. Apart from this, in this episode Amy and Sheldon show signs of getting closer to each other.


4: The Imitation Perturbation


What episode of the Big Bang Theory is Halloween?
Screengrab from the episode The Imitation Perturbation (Source: YouTube)


The Imitation Perturbation was released during the 12th season of The Big Bang Theory as the 6th episode, and its main attraction was Howard and Sheldon dressing up like each other. The episode was filled with humorous puns during the duo's back-and-forth war which always adds flavor to the mix. While the show had a lot of laughs, it also showcased some tense moments, like Leonard and Penny thinking about their kiss during the previous Halloween.


FAQ about The Big Bang Theory

The Big Bang Theory has a total of 279 episodes in their 12 season run.

No, The Big Bang Theory ended with their 12th season.

Sheldon and Leonard live in the apartment 4A in their house.

Related Stories

Duffer Brothers’ High School teacher opens up about how her Stranger Things casting came to be Duffer Brothers’ High School teacher opens up about how her Stranger Things casting came to be
Duffer Brothers’ High School teacher opens up about how her Stranger Things casting came to be 
1d
Pluribus: How The Others use celebrity culture through John Cena Pluribus: How The Others use celebrity culture through John Cena
Pluribus: How The Others use celebrity culture through John Cena
21h
How is HBO Max’s Heated Rivalry redefining TV viewing habits? Details explored How is HBO Max’s Heated Rivalry redefining TV viewing habits? Details explored
How is HBO Max’s Heated Rivalry redefining TV viewing habits? Details explored
1d
NCIS Season 5 Episode 10 'Corporal Punishment' cast: Here's who brought the CBS procedural to life NCIS Season 5 Episode 10 'Corporal Punishment' cast: Here's who brought the CBS procedural to life
NCIS Season 5 Episode 10 'Corporal Punishment' cast: Here's who brought the CBS procedural to life 
16h
Is Rick and Morty leaving Netflix? Here’s how to stream the animated series Is Rick and Morty leaving Netflix? Here’s how to stream the animated series
Is Rick and Morty leaving Netflix? Here’s how to stream the animated series
17h
Rick Riordan teases how Percy Jackson and the Olympians Season 2 might be relevant today Rick Riordan teases how Percy Jackson and the Olympians Season 2 might be relevant today
Rick Riordan teases how Percy Jackson and the Olympians Season 2 might be relevant today
1d
Stranger Things Season 1 Episode 1 cast and characters: Here's who brought the hit Netflix series premiere to life Stranger Things Season 1 Episode 1 cast and characters: Here's who brought the hit Netflix series premiere to life
Stranger Things Season 1 Episode 1 cast and characters: Here's who brought the hit Netflix series premiere to life
21h
"Like to keep the audience guessing": Pluribus creator Vince Gilligan explains the "cannibalism turn" & John Cena's cameo in Episode 6 "Like to keep the audience guessing": Pluribus creator Vince Gilligan explains the "cannibalism turn" & John Cena's cameo in Episode 6
"Like to keep the audience guessing": Pluribus creator Vince Gilligan explains the "cannibalism turn" & John Cena's cameo in Episode 6
1d
Pluribus Episode 6 made me question who the real villain is: Here's why Pluribus Episode 6 made me question who the real villain is: Here's why
Pluribus Episode 6 made me question who the real villain is: Here's why
17h
Who dies in Will Trent Season 4? Details revealed by ABC Who dies in Will Trent Season 4? Details revealed by ABC
Who dies in Will Trent Season 4? Details revealed by ABC
10h