The Big Bang Theory Season 9 Episodes
Season 9 Episode Guide
Episode 1 - The Matrimonial MomentumIn the ninth season premiere, Penny struggles with Leonard's confession that he kissed another girl while on the North Sea. After driving to Vegas, Penny must now decide whether she wants to go through with the wedding. Back home, Sheldon doesn't know how to act after Amy pushes pause on their relationship.
|
Episode 2 - The Separation OscillationAfter Amy breaks up with Sheldon, he tries to retaliate by filming a special episode of "Fun with Flags." Leonard, meanwhile, confronts the woman he kissed on the North Sea in an attempt to put Penny's mind at ease, and Bernadette feels guilty about withholding a secret from Penny.
|
Episode 3 - The Bachelor Party CorrosionThe guys' science skills are put to the test when they get a flat tire during Leonard's surprise bachelor party weekend in Mexico. Meanwhile, the girls force Penny to finally tell her family that she eloped with Leonard.
|
Episode 4 - The 2003 ApproximationWhen Penny and Leonard announce they're moving in together, Sheldon decides to revert back to 2003 – a simpler time before he met either of them. Meanwhile, Howard and Raj form a band to play at the Comic Book Store.
|
Episode 5 - The Perspiration ImplementationWhen the guys take fencing lessons from Barry Kripke (recurring guest star John Ross Bowie), Sheldon finds himself in an awkward position when Kripke expresses interest in Amy. Also, Stuart struggles to bring in female customers into the Comic Book Store, so Penny, Amy and Bernadette come by to help him out.
|
Episode 6 - The Helium InsufficiencyIn the midst of a nationwide helium shortage, Sheldon and Leonard take desperate measures to obtain the supplies they need on the black market. Meanwhile, Penny and Bernadette download a dating app on Amy's phone in order to find her a new man. Michael Rapaport guest stars as their black market dealer, Kenny.
|
Episode 7 - The Spock ResonanceWhile being interviewed for a documentary about Spock, Sheldon struggles to suppress his emotions about his recent break-up with Amy – leaving Leonard and Penny shocked to discover that Sheldon had an engagement ring for Amy. Meanwhile, Howard and Bernadette disagree over remodeling his childhood home. Wil Wheaton, Adam Nimoy and Stephen Merchant guest star.
|
Episode 8 - The Mystery Date ObservationWith Amy out on a date with a mystery man, Sheldon enlists the help of Howard and Raj to find a new girlfriend by posting online. And when Amy is coy with the details about the guy she's dating, Penny and Bernadette decide to spy.
|
Episode 9 - The Platonic PermutationSheldon and Amy try hanging out as friends when they spend Thanksgiving together at the Aquarium. Meanwhile, Howard reluctantly agrees to volunteer at the soup kitchen with Bernadette, Raj and Emily, while Penny discovers that Leonard knows more about her than she thought.
|
Episode 10 - The Earworm ReverberationAfter driving Leonard and Penny crazy by his desperate attempts to remember the name of a song stuck in his head, Sheldon has a revelation when he realizes why. Then, despite their previously awkward date, Amy invites Dave (recurring guest star Stephen Merchant) over for dinner. And Howard and Raj become obsessed with a fan of their band, Footprints on the Moon.
|
Episode 11 - The Opening Night ExcitationAfter more than five years of dating, Sheldon and Amy spend their first night together; while Leonard, Howard and Raj must decide who will take their extra Star Wars movie ticket. Recurring guest star Bob Newhart returns as Sheldon's Obi-Wan to advise him on his difficult relationship decisions.
|
Episode 12 - The Sales Call SubliminationPenny gets more than she bargained for when Leonard agrees to meet with a psychiatrist on her behalf. Sheldon and Raj collaborate on an astronomical discovery. Howard and Bernadette can’t believe what they’re feeling after Stuart moves out.
|
Episode 13 - The Empathy OptimizationAs the gang decides to head to Vegas for the weekend on a party bus they will have to brace themselves for a sick Sheldon who is suddenly compelled to apologize to each of them.
|
Episode 14 - The Meemaw MaterializationSheldon’s thrilled when his Meemaw (guest star June Squibb) comes to visit, but his excitement quickly fades when she butts heads with Amy. Also, Raj meets a new girl (guest star Alessandra Torresani) at the comic book store who makes him question his relationship with Emily.
|
Episode 15 - The Valentino SubmergenceSheldon and Amy host a special live Valentine’s Day episode of “Fun with Flags.” While Leonard and Penny grapple with getting older, Howard and Bernadette find a surprise in their hot tub; and Raj is torn between Emily and the cute girl he met at the Comic Book Store.
|
Episode 16 - The Positive Negative ReactionBernadette tells Howard that she's pregnant but his reaction is not what she thought it would be. The guys take Howard to a karaoke bar where Penny's posse join them to celebrate.
|
Episode 17 - The Celebration ExperimentationAfter more than nine years together, the gang finally celebrates Sheldon's birthday with a few special guests on the 200th episode. Christine Baranski, Sara Gilbert and Wil Wheaton return and are joined by special guest star Adam West.
|
Episode 18 - The Application DeteriorationLeonard, Sheldon, and Wolowitz run into problems when they file for a patent for their infinite persistence gyroscope. Also, Penny, Amy and Bernadette give Koothrappali dating advice when Emily reaches out to him after their breakup.
|
Episode 19 - The Solder Excursion DiversionWhen Sheldon's laptop dies, it leads him to share a deep secret with Amy after she buys him a new one; Meanwhile, Raj sells out Leonard and Howard after they lie to their wives in order to attend an early screening of a movie.
|
Episode 20 - The Big Bear PrecipitationSheldon shares a secret about Leonard when the two go on a weekend trip with Penny and Amy; Koothrappali goes all out with pregnancy gifts.
|
Episode 21 - The Viewing Party CombustionWhen a small argument between Leonard and Sheldon erupts into a heated fight, everyone must take sides during a group get-together.
|
Episode 22 - The Fermentation BifurcationThe gang goes to a wine bar and runs into Penny's old boyfriend, Zack, Bernadette gets stuck spending the evening with Sheldon when she can not go wine tasting with the group and things do not go as planned when Koothrappali introduces his new girlfriend, Claire to the rest of gang.
|
Episode 23 - The Line Substitution SolutionSheldon 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 vising mother.
|
Episode 24 - The Convergence ConvergenceChaos ensues in the ninth season finale when Leonard's recently divorced parents (special guest stars Judd Hirsch and Christine Baranski) and Sheldon's devoutly religious mother come to town. Meanwhile, Howard and Raj think the government is out to get them, when they're contacted about their guidance system.
|
More movies and TV shows at the American TV Listings Guide..
In order to keep our service free we display advertising and may earn affiliate fees for purchases you make on external sites that we partner with.
All content is © 2024 On TV Tonight unless pertaining to advertisers, companies, studios, movies and TV series listed on this site.