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Season 9 – The Big Bang Theory

Play trailer Poster for Season 9 – The Big Bang Theory 2015 Comedy Play Trailer Watchlist
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67% Tomatometer 6 Reviews 75% Popcornmeter 500+ Ratings
Mensa-fied best friends and roommates Leonard and Sheldon, physicists who work at the California Institute of Technology, may be able to tell everybody more than they want to know about quantum physics, but getting through most basic social situations, especially ones involving women, totally baffles them. How lucky, then, that babe-alicious waitress/aspiring actress Penny moves in next door. Frequently seen hanging out with Leonard and Sheldon are friends and fellow Caltech scientists Wolowitz and Koothrappali. Will worlds collide? Does Einstein theorize in the woods?
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The Big Bang Theory — Season 9

Critics Reviews

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John Doyle Globe and Mail The show isn't funny any more. The same tired jokes go around in circles. It's dated and stale. Mar 1, 2016 Full Review Laura Bradley Slate There was something that felt a bit revolutionary about a season that begins with an imperfect wedding between two characters who've had a well-established relationship in the world of the show. Sep 22, 2015 Full Review Tom Eames Digital Spy You've got to hand it to The Big Bang Theory for attempting to progress its plot in this ninth season premiere, but have the writers run out of ideas if we've ended up in misery territory? Nov 18, 2015 Full Review Alejandra Torres The Young Folks One of the best parts of this show lies at the heart of the show: science. Rated: 9/10 Oct 7, 2015 Full Review Jesse Schedeen IGN Movies The Big Bang Theory defied expectations this week, but in a good way. Rated: 8.2/10 Sep 22, 2015 Full Review Ashley Bissette Sumerel TV Fanatic For a rather serious season premiere, "The Matrimonial Momentum" is still a lot of fun. This is a contrast that The Big Bang Theory continues to handle well. Rated: 4/5 Sep 22, 2015 Full Review Read all reviews

Audience Reviews

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BRENDEN J Season nine of The Big Bang Theory was a fun season. Rated 5 out of 5 stars 04/09/25 Full Review Jamil C Season 9 Sheldon is extra annoying, it really gets too much and the fact that scientists can be that dumb is astonishing. The shows first 6 seasons were really great but after that the show just took a dive. Rated 0.5 out of 5 stars 11/13/24 Full Review letaiser I think it was not good like season 8 the jokes were bad and the whole character weretn funny Rated 1.5 out of 5 stars 06/22/23 Full Review Audience Member simplemente no debo decir nada 18/10 Rated 5 out of 5 stars 01/09/23 Full Review Audience Member Awesome humour really amazing Rated 5 out of 5 stars 01/09/23 Full Review Audience Member excellent series, with very good plot Rated 5 out of 5 stars 01/09/23 Full Review Read all reviews
The Big Bang Theory — Season 9

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Episodes

Episode 1 Aired Sep 21, 2015 The Matrimonial Momentum Sheldon struggles to understand what is going on with Amy; Penny must decide if she can get past Leonard's bad behavior. Details Episode 2 Aired Sep 28, 2015 The Separation Oscillation Leonard tries to ease Penny's mind; Sheldon plans a special episode of "Fun With Flags"; Bernadette feels bad about keeping a secret. Details Episode 3 Aired Oct 5, 2015 The Bachelor Party Corrosion A flat tire during Leonard's bachelor party weekend in Mexico tests the guys' skills; Penny is compelled to tell her family that she and Leonard eloped. Details Episode 4 Aired Oct 12, 2015 The 2003 Approximation An impending change to his living arrangements inspires Sheldon to revert to 2003, before he met Penny and Leonard; Raj and Howard form a band. Details Episode 5 Aired Oct 19, 2015 The Perspiration Implementation Barry Kripke expresses interest in Amy while leading a fencing lesson for the guys; when Stuart tries to attract female customers to the store, Penny, Amy and Bernadette help out. Details Episode 6 Aired Oct 26, 2015 The Helium Insufficiency Leonard and Sheldon go to great lengths to secure the helium they need during a nation-wide shortage; Bernadette and Penny try to to find Amy a new man on a dating app. Details Episode 7 Aired Nov 5, 2015 The Spock Resonance Sheldon struggles to keep his emotions in check when he is interviewed for a documentary about Spock; Penny and Leonard make a surprising discovery; Wolowitz and Bernadette get into a disagreement about remodeling his childhood home. Details Episode 8 Aired Nov 12, 2015 The Mystery Date Observation Sheldon, Wolowitz and Koothrappali post an ad online to find a new girlfriend for Sheldon; Penny and Bernadette decide to spy when Amy is secretive about who she is dating. Details Episode 9 Aired Nov 19, 2015 The Platonic Permutation Amy and Sheldon spend Thanksgiving at the aquarium -- as friends; Wolowitz volunteers at the soup kitchen with Raj, Emily and Bernadette; Penny realizes that Leonard knows her better than she thought. Details Episode 10 Aired Dec 10, 2015 The Earworm Reverberation Sheldon has a song stuck in his head; despite their awkward date, Amy asks Dave over for dinner; Koothrappali and Wolowitz are obsessed with a fan of their band. Details Episode 11 Aired Dec 17, 2015 The Opening Night Excitation After dating for more than five years, Amy and Sheldon spend the night together for the first time; Leonard, Wolowitz, and Koothrappali must decide what to do with an extra movie ticket. Details Episode 12 Aired Jan 7, 2016 The Sales Call Sublimination Leonard agrees to meet with a psychiatrist (Jane Kaczmarek) on Penny's behalf; Sheldon and Koothrappali work together on an astronomical discovery; Wolowitz and Bernadette struggle with their feelings when Stuart moves out. Details Episode 13 Aired Jan 14, 2016 The Empathy Optimization After dealing with Sheldon while he was sick, Leonard, Penny and the gang attempt to treat themselves to a Sheldon-free weekend. Details Episode 14 Aired Feb 4, 2016 The Meemaw Materialization Sheldon's excitement about his Meemaw's visit fades when she butts heads with Amy; Raj questions his relationship with Emily after meeting someone new. Details Episode 15 Aired Feb 11, 2016 The Valentino Submergence Amy and Sheldon host a Valentine's Day edition of Fun With Flags; Penny and Leonard wrestle with getting older; Howard and Bernadette make a discovery in their hot tub; Raj is torn between Emily and another woman. Details Episode 16 Aired Feb 18, 2016 The Positive Negative Reaction The gang celebrates news of Bernadette's pregnancy by singing karaoke; Wolowitz's reaction to the pregnancy announcement worries Bernadette; Wolowitz believes he needs to make more money to support his growing family. Details Episode 17 Aired Feb 25, 2016 The Celebration Experimentation For the first time in nine years, the gang celebrates Sheldon's birthday -- surprising him with a special guest. Details Episode 18 Aired Mar 10, 2016 The Application Deterioration Leonard, Sheldon and Wolowitz file for a patent on their new invention; Penny, Amy and Bernadette give dating advice to Koothrappali after his breakup with Emily. Details Episode 19 Aired Mar 31, 2016 The Solder Excursion Diversion Sheldon makes a surprise revelation when Amy buys him a new laptop; Leonard and Wolowitz get sold out by Koothrappali after lying to their wives to attend a movie screening. Details Episode 20 Aired Apr 7, 2016 The Big Bear Precipitation Sheldon shares a secret about Leonard when the two go on a weekend trip with Penny and Amy; Koothrappali goes all out with pregnancy gifts. Details Episode 21 Aired Apr 21, 2016 The Viewing Party Combustion During a group get-together, a minor argument between Sheldon and Leonard turns into a heated debate, leaving the rest of the gang to choose sides. Details Episode 22 Aired Apr 28, 2016 The Fermentation Bifurcation The gang runs into Penny's old boyfriend while out at a wine bar; Bernadette spends an evening with Sheldon; Koothrappali's introduction of his new girlfriend doesn't go as planned. Details Episode 23 Aired May 5, 2016 The Line Substitution Solution Sheldon wants to go to a movie screening, so he pays Stuart to spend the day with Amy; Penny has a difficult time connecting with Leonard's visiting mother. Details Episode 24 Aired May 12, 2016 The Convergence Convergence Leonard's recently divorced parents and Sheldon's devoutly religious mother visit; when they are contacted about their guidance system, Wolowitz and Koothrappali think the government is after them. Details
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Season Info

Director
Mark Cendrowski, Nicole Lorre, Anthony Rich
Executive Producer
Chuck Lorre, Bill Prady, Steven Molaro
Screenwriter
Chuck Lorre, David Goetsch, Bill Prady, Jim Reynolds, Maria Ferrari, Tara Hernandez, Jeremy Howe, Anthony Del Broccolo, Steven Molaro, Steve Molaro, Steve Holland, Eric Kaplan, Saladin K. Patterson, Adam Faberman
Network
CBS
Rating
TV-PG (D|L)
Genre
Comedy
Original Language
English
Release Date
Sep 21, 2015