
The Big Bang Theory 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.
Title | The Big Bang Theory - Season 9 |
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Alternative Titles | La teoría del Big Bang, 天才理论传, Teorie velkého tresku, Teorie velkeho tresku, Suure Paugu teooria, Agymenok, Hamapats hagadol, תאוריית המפץ הגדול, SONY, Enfejare Bozorg, Didziojo sprogimo teorija, La teoría del Big Bang, Štreberi, Teoria vel'keho tresku, TBBT |
First Air Date | 2007-09-24 |
Last Air Date | 2019-02-21 |
Number of Episodes | 272 |
Number of Seasons | 12 |
Genres | Comedy, |
Networks | CBS, |
Casts | Simon Helberg, Johnny Galecki, Jim Parsons, Kunal Nayyar, Kaley Cuoco, Mayim Bialik, Melissa Rauch |
Plot Keywords | , |





































































































































Episodes List
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The Big Bang Theory Season 9 :Episode 1 The Matrimonial Momentum The Matrimonial Momentum
2015-09-21The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...
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The Big Bang Theory Season 9 :Episode 2 The Separation Oscillation The Separation Oscillation
2015-09-28The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...
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The Big Bang Theory Season 9 :Episode 3 The Bachelor Party Corrosion The Bachelor Party Corrosion
2015-10-05The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...
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The Big Bang Theory Season 9 :Episode 4 The 2003 Approximation The 2003 Approximation
2015-10-12The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...
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The Big Bang Theory Season 9 :Episode 5 The Perspiration Implementation The Perspiration Implementation
2015-10-19The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...
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The Big Bang Theory Season 9 :Episode 6 The Helium Insufficiency The Helium Insufficiency
2015-10-26The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...
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The Big Bang Theory Season 9 :Episode 7 The Spock Resonance The Spock Resonance
2015-11-05The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...
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The Big Bang Theory Season 9 :Episode 8 The Mystery Date Observation The Mystery Date Observation
2015-11-12The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...
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The Big Bang Theory Season 9 :Episode 9 The Platonic Permutation The Platonic Permutation
2015-11-19The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...
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The Big Bang Theory Season 9 :Episode 10 The Earworm Reverberation The Earworm Reverberation
2015-12-10The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...
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The Big Bang Theory Season 9 :Episode 11 The Opening Night Excitation The Opening Night Excitation
2015-12-17The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...
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The Big Bang Theory Season 9 :Episode 12 The Sales Call Sublimation The Sales Call Sublimation
2016-01-07The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...
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The Big Bang Theory Season 9 :Episode 13 The Empathy Optimization The Empathy Optimization
2016-01-14The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...
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The Big Bang Theory Season 9 :Episode 14 The Meemaw Materialization The Meemaw Materialization
2016-02-04The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...
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The Big Bang Theory Season 9 :Episode 15 The Valentino Submergence The Valentino Submergence
2016-02-11The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...
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The Big Bang Theory Season 9 :Episode 16 The Positive Negative Reaction The Positive Negative Reaction
2016-02-18The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...
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The Big Bang Theory Season 9 :Episode 17 The Celebration Experimentation The Celebration Experimentation
2016-02-25The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...
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The Big Bang Theory Season 9 :Episode 18 The Application Deterioration The Application Deterioration
2016-03-10The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...
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The Big Bang Theory Season 9 :Episode 19 The Solder Excursion Diversion The Solder Excursion Diversion
2016-03-31The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...
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The Big Bang Theory Season 9 :Episode 20 The Big Bear Precipitation The Big Bear Precipitation
2016-04-07The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...
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The Big Bang Theory Season 9 :Episode 21 The Viewing Party Combustion The Viewing Party Combustion
2016-04-21The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...
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The Big Bang Theory Season 9 :Episode 22 The Fermentation Bifurcation The Fermentation Bifurcation
2016-04-28The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...
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The Big Bang Theory Season 9 :Episode 23 The Line Substitution Solution The Line Substitution Solution
2016-05-05The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...
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The Big Bang Theory Season 9 :Episode 24 The Convergence Convergence The Convergence Convergence
2016-05-12The Big Bang Theory is centered on five characters living in Pasadena, California: roommates Leonard Hofstadter and Sheldon Cooper; Penny, a waitress...