
S09E01 The Matrimonial Momentum
Sep 21, 2015After driving to Vegas to get married, Penny struggles with Leonard's confession that he kissed another girl. Also, Sheldon doesn't know how to act after Amy pushes pause on their relationship.
30m

S09E02 The Separation Oscillation
Sep 28, 2015Leonard confronts the woman he kissed on the North Sea in an attempt to set Penny's mind at ease. Also, Sheldon films a special episode of "Fun with Flags" after his breakup with Amy, and Bernadette feels guilty about withholding a secret from Penny.
30m

S09E03 The Bachelor Party Corrosion
Oct 5, 2015The guys surprise Leonard with a belated bachelor-party weekend in Mexico, but their plans hit a bump in the road when they get a flat tire on the way. Meanwhile, the girls lean on Penny to tell her unsuspecting family that she and Leonard eloped.
30m

S09E04 The 2003 Approximation
Oct 12, 2015Sheldon learns of an impending change in his living arrangements and decides to revert back to 2003, a simpler time before he met Leonard and Penny. Also, Howard and Raj form a band to play at the Comic Book Store.
30m

S09E05 The Perspiration Implementation
Oct 19, 2015The guys take a fencing lesson from Barry Kripke and Sheldon finds himself in an awkward position when Kripke expresses interest in Amy. Also, when Stuart struggles to get female customers at the Comic Book Store, Penny, Amy and Bernadette come by to help him out.
30m

S09E06 The Helium Insufficiency
Oct 26, 2015In the midst of a nation-wide helium shortage, Sheldon and Leonard take desperate measures to get the supplies they need. Also, Penny and Bernadette download a dating app on Amy's phone to try and find her a new man.
30m

S09E07 The Spock Resonance
Nov 5, 2015While being interviewed for a documentary about Spock from "Star Trek", Sheldon struggles to suppress his emotions about his recent break-up with Amy. Also, Wolowitz and Bernadette butt heads over remodeling his childhood home.
30m

S09E08 The Mystery Date Observation
Nov 12, 2015When Leonard, Penny and Bernadette learn that Amy is going out on a dinner date, the trio set out to spy on her and the guy. Meanwhile, Sheldon recruits Raj and Howard to find a woman for him, since they were responsible for getting Amy and him together.
30m

S09E09 The Platonic Permutation
Nov 19, 2015Sheldon and Amy try hanging out as friends when they spend Thanksgiving together at the aquarium. Also, Wolowitz reluctantly agrees to volunteer at the soup kitchen with Bernadette, Raj and Emily, and Penny discovers that Leonard knows more about her than she thought.
30m

S09E10 The Earworm Reverberation
Dec 10, 2015Sheldon has a revelation when he realizes why a song was stuck in his head. Also, Amy invites Dave over for dinner despite their previously awkward date, and Wolowitz and Koothrappali become obsessed with a fan of their band, "Footprints on the Moon".
30m

S09E11 The Opening Night Excitation
Dec 17, 2015As the guys prepare to go to the premiere of the new Star Wars movie, Sheldon plans a special event for Amy's birthday. Also, Leonard, Wolowitz, and Koothrappali must decide who will take their extra Star Wars movie ticket.
30m

S09E12 The Sales Call Sublimation
Jan 7, 2016Penny gets more than she bargained for when Leonard agrees to meet with a psychiatrist on her behalf. Also, Sheldon and Koothrappali collaborate on an astronomical discovery, and Wolowitz and Bernadette can't believe what they are feeling after Stuart moves out.
30m

S09E13 The Empathy Optimization
Jan 14, 2016After having to deal with a sick Sheldon, Leonard, Penny and the gang try to treat themselves to a Sheldon-free weekend.
30m

S09E14 The Meemaw Materialization
Feb 4, 2016Sheldon's thrilled when his Meemaw comes to visit, but his excitement quickly fades when she butts heads with Amy. Also, Raj meets a new girl at the comic book store who makes him question his relationship with Emily.
30m

S09E15 The Valentino Submergence
Feb 11, 2016Sheldon and Amy host a live Valentine's Day episode of Fun with Flags, 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 Bookstore.
30m

S09E16 The Positive Negative Reaction
Feb 18, 2016When the gang finds out about Bernadette's pregnancy, they celebrate by singing karaoke. Also, Bernadette is concerned when Wolowitz freaks out over her pregnancy announcement, and Wolowitz is convinced he must make more money to provide for the baby.
30m

S09E17 The Celebration Experimentation
Feb 25, 2016After more than nine years together, the gang finally celebrates Sheldon's birthday, surprising him with a special guest.
30m

S09E18 The Application Deterioration
Mar 10, 2016Leonard, 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.
30m

S09E19 The Solder Excursion Diversion
Mar 31, 2016Amy is shocked at a revelation from Sheldon after she buys him a new laptop. Also, Koothrappali sells out Leonard and Wolowitz after they lie to their wives in order to attend an early screening of a movie.
30m

S09E20 The Big Bear Precipitation
Apr 7, 2016Sheldon spills a secret of Leonard's when the two take a weekend cabin trip with Penny and Amy. Also, when Koothrappali goes overboard with pregnancy gifts, Wolowitz and Bernadette must draw the line.
30m

S09E21 The Viewing Party Combustion
Apr 21, 2016Everyone must choose sides when a small argument between Leonard and Sheldon erupts into a heated fight during a group get-together.
30m

S09E22 The Fermentation Bifurcation
Apr 28, 2016The gang goes to a wine bar and runs into Penny's old boyfriend, Zack. Also, Bernadette gets stuck spending the evening with Sheldon when she can't go wine tasting with the group, and things don't go as planned when Koothrappali introduces his new girlfriend, Claire.
30m

S09E23 The Line Substitution Solution
May 5, 2016Sheldon hires Stuart to spend the day with Amy when he'd rather go to a movie screening. Also, Leonard's mother, Beverly, comes to town and Penny struggles to make a connection with her.
30m

S09E24 The Convergence Convergence
May 12, 2016Chaos ensues when Leonard's recently divorced parents, Alfred and Beverly, and Sheldon's devoutly religious mother, Mary, come to town. Also, Wolowitz and Koothrappali think the government is out to get them when they are contacted about their guidance system.
30m