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The Best Big Bang Theory Episodes of All Time  

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List of the best Big Bang Theory episodes, as voted on by other fans of the series. The Big Bang Theory is a popular American sitcom running on CBS. The show has received countless awards and remains to be one of the most dominant television programs of the last 25 years. With so many memorable episodes of the show, it's hard to trust just one person's opinion of what the top Big Bang Theory episodes of all time are.

Fans of The Big Bang Theory are extremely passionate about the show, and there is often debate over which episodes are better than others. That's why this list exists- so you can vote for your favorites and we can find out once and for all what everyone thinks the best episode is. Episodes include everything from The Love Car Displacement to The Vegas Renormalization. What is the best Big Bang episode of all time? Look below and find out.
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list ordered by
1
The Staircase Implementation is listed (or ranked) 1 on the list The Best Big Bang Theory Episodes of All Time
The Staircase Implementation May 17 2010
Leonard tells Penny about how he met Sheldon for the first time...and what happened to the elevator.
2
The Bath Item Gift Hypothesis is listed (or ranked) 2 on the list The Best Big Bang Theory Episodes of All Time
The Bath Item Gift Hypothesis Dec 15 2008
Penny starts dating Leonard's handsome colleague; Leonard and his friends are tortured by Sheldon's obsession with gift-giving etiquette.
3
The Panty Piñata Polarization is listed (or ranked) 3 on the list The Best Big Bang Theory Episodes of All Time
Nov 10 2008
When Sheldon bans Penny from the apartment for numerous minor infractions, she decides to retaliate.
4
The Justice League Recombinati... is listed (or ranked) 4 on the list The Best Big Bang Theory Episodes of All Time
Dec 16 2010
The guys find a "super" use for Penny's new boyfriend, Zack, when they enter a costume contest as the Justice League.
5
The Einstein Approximation is listed (or ranked) 5 on the list The Best Big Bang Theory Episodes of All Time
Feb 01 2010
Sheldon's search for the answer to a physics problem leads him to work at the Cheesecake Factory with Penny.
6
The Barbarian Sublimation is listed (or ranked) 6 on the list The Best Big Bang Theory Episodes of All Time
The Barbarian Sublimation Oct 06 2008
Sheldon creates a monster when he introduces Penny to online gaming.
7
The Euclid Alternative is listed (or ranked) 7 on the list The Best Big Bang Theory Episodes of All Time
Oct 20 2008
Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.
8
The Excelsior Acquisition is listed (or ranked) 8 on the list The Best Big Bang Theory Episodes of All Time
The Excelsior Acquisition Mar 01 2010
Sheldon winds up in traffic court when he gets a ticket because of Penny.
9
The Middle Earth Paradigm is listed (or ranked) 9 on the list The Best Big Bang Theory Episodes of All Time
Oct 29 2007
Penny hosts a Hallowe'en party, putting Leonard, Sheldon, Wolowitz, and Koothrappali through a new test of their social skills.
10
The Cruciferous Vegetable Ampl... is listed (or ranked) 10 on the list The Best Big Bang Theory Episodes of All Time
The Cruciferous Vegetable Amplification Sep 30 2010
Realizing he will not live long enough to download his consciousness into a robot body, Sheldon tries to extend his life span.
11
The Werewolf Transformation is listed (or ranked) 11 on the list The Best Big Bang Theory Episodes of All Time
The Werewolf Transformation Feb 23 2012
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.
12
The Zarnecki Incursion is listed (or ranked) 12 on the list The Best Big Bang Theory Episodes of All Time
The Zarnecki Incursion Mar 31 2011
Sheldon's World of Warcraft online game account is hacked and he is determined to find out who did it. Also Penny shares some girl talk with her friends about Leonard and his new girlfriend. ...more
13
The Zazzy Substitution is listed (or ranked) 13 on the list The Best Big Bang Theory Episodes of All Time
The Zazzy Substitution Oct 07 2010
The guys are concerned as Sheldon searches for an alternative to human companionship.
14
The Dumpling Paradox is listed (or ranked) 14 on the list The Best Big Bang Theory Episodes of All Time
Nov 05 2007
With Wolowitz AWOL with one of her friends, Penny's recruited to fill in for him on the guys' Halo team
15
The Vengeance Formulation is listed (or ranked) 15 on the list The Best Big Bang Theory Episodes of All Time
The Vengeance Formulation Nov 23 2009
After he's humiliated on National Public Radio, Sheldon vows to destroy Kripke, while Wolowitz tries not to destroy his new relationship with Bernadette.
16
The Flaming Spittoon Acquisiti... is listed (or ranked) 16 on the list The Best Big Bang Theory Episodes of All Time
The Flaming Spittoon Acquisition Nov 17 2011
Sheldon considers taking his relationship with Amy to the next level when Stuart from the comic book store asks her out on a date.
17
The Love Car Displacement is listed (or ranked) 17 on the list The Best Big Bang Theory Episodes of All Time
The Love Car Displacement Jan 20 2011
Bernadette runs into her ex-boyfriend while attending a science event with Wolowitz.
18
The Vegas Renormalization is listed (or ranked) 18 on the list The Best Big Bang Theory Episodes of All Time
The Vegas Renormalization Apr 27 2009
Leonard and Koothrappali escort a heartbroken Wolowitz to Las Vegas, and Sheldon becomes locked out of his apartment and must stay with Penny.
19
The Precious Fragmentation is listed (or ranked) 19 on the list The Best Big Bang Theory Episodes of All Time
The Precious Fragmentation Mar 08 2010
When the guys find a ring from "The Lord of the Rings" at a garage sale, it threatens to tear them apart.
20
The Maternal Congruence is listed (or ranked) 20 on the list The Best Big Bang Theory Episodes of All Time
Dec 14 2009
A Christmas visit from his mother has Leonard discovering she's kept a lot of news from him that she shares with Sheldon and worrying if she'll approve of his romance with Penny.
21
The Gothowitz Deviation is listed (or ranked) 21 on the list The Best Big Bang Theory Episodes of All Time
Erdner added The Gothowitz Deviation Oct 05 2009
Howard and Raj visit a Goth nightclub to pick up women while Sheldon attempts to build a better Penny using chocolate-based behavior modification.
22
The Beta Test Initiation is listed (or ranked) 22 on the list The Best Big Bang Theory Episodes of All Time
Jan 26 2012
"The Beta Test Initiation" is the fourteenth episode of the fifth season of the sitcom The Big Bang Theory. The episode premiered on January 26, 2012 in the United States on CBS. In ...more
23
The Bozeman Reaction is listed (or ranked) 23 on the list The Best Big Bang Theory Episodes of All Time
The Bozeman Reaction Jan 18 2010
When their apartment is robbed, Leonard and Sheldon turn to their friends to create a state-of-the-art security system.
24
The Creepy Candy Coating Corol... is listed (or ranked) 24 on the list The Best Big Bang Theory Episodes of All Time
Oct 19 2009
After overhearing that Wil Wheaton is entering a trading-card competition, Sheldon decides to enter it himself. Meanwhile, Penny sets up one of her friends on a date with Wolowitz.
25
The Hot Troll Deviation is listed (or ranked) 25 on the list The Best Big Bang Theory Episodes of All Time
Oct 14 2010
An embarrassing secret of Wolowitz's comes to light, while Sheldon and Raj have a small war at work.