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TV Full List of The Big Bang Theory Episodes

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Below is a complete The Big Bang Theory episode list that spans the show's entire TV run. Photos from the individual The Big Bang Theory episodes are listed along with the The Big Bang Theory episode names when available, as are the dates of the original airing of the episode. The Big Bang Theory episodes from every season can be seen below, along with fun facts about who directed the episodes, the stars of the and sometimes even information like shooting locations and original air dates. Items featured on this poll include everything from “The Middle Earth Paradigm” to “The Creepy Candy Coating Corollary.” Are you remembering a funny scene but can't think of the name that the The Big Bang Theory episode is from? Scroll below and you'll find what you're looking for.

1
Unaired Pilot is listed (or ranked) 1 on the list Full List of The Big Bang Theory Episodes
Unaired Pilot The very first pilot of The Big Bang Theory. With a person call Katie played by Amanda Walsh, and a female friend called Gilda (Iris Bahr)

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2
It All Started With A Big Bang is listed (or ranked) 2 on the list Full List of The Big Bang Theory Episodes
It All Started With A Big Bang Apr 05 2012 - Celebrating the 100th episode of The Big Bang Theory, Rick Edwards looks back at some of the US sitcom's most hilarious and memorable scenes and talks with the cast and crew on the set in ...more

3
Access All Areas is listed (or ranked) 3 on the list Full List of The Big Bang Theory Episodes
Access All Areas Apr 05 2012 - Celebrating the 100th episode of US sitcom The Big Bang Theory, Rick Edwards travels to the Hollywood set for an access-all-areas visit, catching up with the cast and learning everything there ...more

4
Pilot is listed (or ranked) 4 on the list Full List of The Big Bang Theory Episodes
Pilot Sep 24 2007 - Brilliant physicist roommates Leonard and Sheldon meet their new neighbor Penny, who begins showing them that as much as they know about science, they know little about actual living.

5
The Fuzzy Boots Corollary is listed (or ranked) 5 on the list Full List of The Big Bang Theory Episodes
The Fuzzy Boots Corollary Oct 08 2007 - Leonard asks a woman out after he finds out that Penny is seeing someone.

6
The Luminous Fish Effect is listed (or ranked) 6 on the list Full List of The Big Bang Theory Episodes
The Luminous Fish Effect Oct 15 2007 - Sheldon's getting fired forces him to explore what life has to offer outside physics, leaving Leonard to take drastic action to snap his friend out of his funk.

7
The Middle Earth Paradigm is listed (or ranked) 7 on the list Full List of The Big Bang Theory Episodes
The Middle Earth Paradigm Oct 29 2007 - Penny hosts a Hallowe'en party, putting Leonard, Sheldon, Wolowitz, and Koothrappali through a new test of their social skills.

8
The Dumpling Paradox is listed (or ranked) 8 on the list Full List of The Big Bang Theory Episodes
The Dumpling Paradox Nov 05 2007 - With Wolowitz AWOL with one of her friends, Penny's recruited to fill in for him on the guys' Halo team

9
The Grasshopper Experiment is listed (or ranked) 9 on the list Full List of The Big Bang Theory Episodes
The Grasshopper Experiment Nov 12 2007 - Raj's parents set him up on a blind date, but just when he discovers he can talk to her, she shows interest in Sheldon.

10
The Cooper-Hofstadter Polariza... is listed (or ranked) 10 on the list Full List of The Big Bang Theory Episodes
The Cooper-Hofstadter Polarization Mar 17 2008 - When they're invited to present at a physics conference, Sheldon's reluctance to share the credit leads to a tiff between him and Leonard, and Penny's intervention only exacerbates the

11
The Loobenfeld Decay is listed (or ranked) 11 on the list Full List of The Big Bang Theory Episodes
The Loobenfeld Decay Mar 24 2008 - Leonard and Sheldon each lie to avoid seeing Penny's concert, but Sheldon's is a bit too complicated for his own good.

12
The Pancake Batter Anomaly is listed (or ranked) 12 on the list Full List of The Big Bang Theory Episodes
The Pancake Batter Anomaly Mar 31 2008 - With his friends knowing how sour he acts when sick—and avoiding him as a result—Sheldon is nursed by Penny, who hasn't a clue what she's in for.

13
The Jerusalem Duality is listed (or ranked) 13 on the list Full List of The Big Bang Theory Episodes
The Jerusalem Duality Apr 14 2008 - With Sheldon rattled over meeting Dennis, a 15-year-old physicist who's smarter than he, Leonard helps him look for a way to debunk Dennis's research.

14
The Bat Jar Conjecture is listed (or ranked) 14 on the list Full List of The Big Bang Theory Episodes
The Bat Jar Conjecture Apr 21 2008 - Sheldon finds himself booted from the gang's Physics Bowl team and replaced with Leslie, so he forms his own team, hoping to prove he's superior.

15
The Nerdvana Annihilation is listed (or ranked) 15 on the list Full List of The Big Bang Theory Episodes
The Nerdvana Annihilation Apr 28 2008 - When delivery of another collectible leads to Penny's lashing out at Leonard, he decides it's time to give up his habit, much to his friends' protestation.

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16
The Pork Chop Indeterminacy is listed (or ranked) 16 on the list Full List of The Big Bang Theory Episodes
The Pork Chop Indeterminacy May 05 2008 - The rest of the gang fall for Sheldon's twin sister, and Leonard's plan to win her heart is derailed when Sheldon declares he'll be the one to decide who can date her.

17
The Tangerine Factor is listed (or ranked) 17 on the list Full List of The Big Bang Theory Episodes
The Tangerine Factor May 19 2008 - Penny's break-up spurs Leonard to summon the courage to ask her out, and each goes to Sheldon for advice on their upcoming date.

18
The Big Bran Hypothesis is listed (or ranked) 18 on the list Full List of The Big Bang Theory Episodes
The Big Bran Hypothesis Oct 01 2007 - Leonard volunteers to sign for a package in an attempt to make a good impression on Penny, but when he enlists Sheldon for help, his attempt at chivalry goes terribly awry.

19
The Peanut Reaction is listed (or ranked) 19 on the list Full List of The Big Bang Theory Episodes
The Peanut Reaction May 12 2008 - Penny wants to throw a surprise party for Leonard, but Sheldon's indulgence at an electronics store throws her off-track.

20
The Hamburger Postulate is listed (or ranked) 20 on the list Full List of The Big Bang Theory Episodes
The Hamburger Postulate Oct 22 2007 - Fearing he's wasting his time on Penny, Leonard ends up making a connection with Leslie.

21
The Bath Item Gift Hypothesis is listed (or ranked) 21 on the list Full List of The Big Bang Theory Episodes
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.

22
The Terminator Decoupling is listed (or ranked) 22 on the list Full List of The Big Bang Theory Episodes
The Terminator Decoupling Mar 09 2009 - "The Terminator Decoupling" is an episode of the United States television series The Big Bang Theory that first aired on CBS on March 9, 2009. It is the seventeenth episode of the ...more

23
The Bad Fish Paradigm is listed (or ranked) 23 on the list Full List of The Big Bang Theory Episodes
The Bad Fish Paradigm Sep 22 2008 - Penny's first date with Leonard goes awry; Penny finds Sheldon to be an unwilling confidant.

24
The Codpiece Topology is listed (or ranked) 24 on the list Full List of The Big Bang Theory Episodes
The Codpiece Topology Sep 29 2008 - A jealous Leonard reacts to Penny's new guy by rebounding with Leslie.

25
The Barbarian Sublimation is listed (or ranked) 25 on the list Full List of The Big Bang Theory Episodes
The Barbarian Sublimation Oct 06 2008 - Sheldon creates a monster when he introduces Penny to online gaming.

26
The Griffin Equivalency is listed (or ranked) 26 on the list Full List of The Big Bang Theory Episodes
The Griffin Equivalency Oct 13 2008 - Raj gets an inflated ego and makes a play for Penny after being referenced in a magazine article.

27
The Euclid Alternative is listed (or ranked) 27 on the list Full List of The Big Bang Theory Episodes
The Euclid Alternative Oct 20 2008 - Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.

28
The Cooper-Nowitzki Theorem is listed (or ranked) 28 on the list Full List of The Big Bang Theory Episodes
The Cooper-Nowitzki Theorem Nov 03 2008 - Sheldon and the gang are confused when a young grad student is attracted to him.

29
The Panty Piñata Polarization is listed (or ranked) 29 on the list Full List of The Big Bang Theory Episodes
The Panty Piñata Polarization Nov 10 2008 - When Sheldon bans Penny from the apartment for numerous minor infractions, she decides to retaliate.

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30
The Lizard-Spock Expansion is listed (or ranked) 30 on the list Full List of The Big Bang Theory Episodes
The Lizard-Spock Expansion Nov 17 2008 - Leonard inadvertently steals away the new woman Wolowitz thinks is the love of his life.

31
The White Asparagus Triangulat... is listed (or ranked) 31 on the list Full List of The Big Bang Theory Episodes
The White Asparagus Triangulation Nov 24 2008 - Sheldon is thrilled when Leonard starts dating a woman who meets Sheldon's stringent standards.

32
The Vartabedian Conundrum is listed (or ranked) 32 on the list Full List of The Big Bang Theory Episodes
The Vartabedian Conundrum Dec 08 2008 - Leonard asks Penny for advice when his new relationship starts moving too fast.

33
The Killer Robot Instability is listed (or ranked) 33 on the list Full List of The Big Bang Theory Episodes
The Killer Robot Instability Jan 12 2009 - Penny's criticism of Wolowitz's romantic life pushes him into depression and AWOL for a fighting robot battle the rest of guys are depending on him for.

34
The Friendship Algorithm is listed (or ranked) 34 on the list Full List of The Big Bang Theory Episodes
The Friendship Algorithm Jan 19 2009 - Sheldon creates a scientific procedure for making friends.

35
The Financial Permeability is listed (or ranked) 35 on the list Full List of The Big Bang Theory Episodes
The Financial Permeability Feb 02 2009 - Sheldon's solution to Penny's financial difficulty leads to a confrontation between Leonard and Penny's ex-boyfriend.

36
The Maternal Capacitance is listed (or ranked) 36 on the list Full List of The Big Bang Theory Episodes
The Maternal Capacitance Feb 09 2009 - Leonard and Penny are drawn together after a disastrous visit from Leonard's mother.

37
The Cushion Saturation is listed (or ranked) 37 on the list Full List of The Big Bang Theory Episodes
The Cushion Saturation Mar 02 2009 - A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz.

38
The Work Song Nanocluster is listed (or ranked) 38 on the list Full List of The Big Bang Theory Episodes
The Work Song Nanocluster Mar 16 2009 - Penny's home business turns into a complete nightmare when Sheldon takes over.

39
The Classified Materials Turbu... is listed (or ranked) 39 on the list Full List of The Big Bang Theory Episodes
The Classified Materials Turbulence May 04 2009 - Penny's second date with Stuart sees her making a comment that gives Leonard new hope for a relationship with her. Wolowitz realizes there's a crucial error in a NASA project he's working on.

40
The Monopolar Expedition is listed (or ranked) 40 on the list Full List of The Big Bang Theory Episodes
The Monopolar Expedition May 11 2009 - The guys' plan to work over the summer at the North Pole makes Penny revaluate her feelings for Leonard.

41
The Dead Hooker Juxtaposition is listed (or ranked) 41 on the list Full List of The Big Bang Theory Episodes
The Dead Hooker Juxtaposition Mar 30 2009 - Penny squares off with a new beautiful female neighbor who may become the building's "new Penny."

42
The Vegas Renormalization is listed (or ranked) 42 on the list Full List of The Big Bang Theory Episodes
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.

43
The Hofstadter Isotope is listed (or ranked) 43 on the list Full List of The Big Bang Theory Episodes
The Hofstadter Isotope Apr 13 2009 - A fellow comic book enthusiast's hitting on Penny leads to Leonard and Howard going to a bar's Ladies' Night.

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44
The Staircase Implementation is listed (or ranked) 44 on the list Full List of The Big Bang Theory Episodes
The Staircase Implementation May 17 2010 - Leonard tells Penny about how he met Sheldon for the first time...and what happened to the elevator.

45
The Psychic Vortex is listed (or ranked) 45 on the list Full List of The Big Bang Theory Episodes
The Psychic Vortex Jan 11 2010 - Leonard is aghast to find out a secret of Penny's: she believes in psychics. Meanwhile, Sheldon tries to assist Koothrappali in picking up a girl at a university mixer.

46
The Gothowitz Deviation is listed (or ranked) 46 on the list Full List of The Big Bang Theory Episodes
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.

47
The Large Hadron Collision is listed (or ranked) 47 on the list Full List of The Big Bang Theory Episodes
The Large Hadron Collision Feb 08 2010 - Leonard can only bring one guest on a trip to see CERN's Large Hadron Collider (the world's largest and highest energy particle accelerator) in Switzerland on Valentine's Day.

48
The Adhesive Duck Deficiency is listed (or ranked) 48 on the list Full List of The Big Bang Theory Episodes
The Adhesive Duck Deficiency Nov 16 2009 - With Leonard, Howard and Raj away camping in the desert, an injured Penny has only Sheldon to rely on.

49
The Vengeance Formulation is listed (or ranked) 49 on the list Full List of The Big Bang Theory Episodes
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.

50
The Creepy Candy Coating Corol... is listed (or ranked) 50 on the list Full List of The Big Bang Theory Episodes
The Creepy Candy Coating Corollary 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.