The Big Bang Theory: Season 9
The Matrimonial Momentum
On their way to get married in Vegas, Leonard confesses to kissing another woman while at sea. Sheldon finds it hard to move on after his break up from Amy.
The Separation Oscillation
Leonard and Penny try to work through their problems, Sheldon hosts a episode of "Fun with Flags and sends it to Amy which angers her after he compares her to a Country.
The Bachelor Party Corrosion
The guys travel to Mexico for a bachelor part in a van used by Richard Feynman which doesn't end well. The girls give Penny a bachelorette party where Amy presents some unusual cookies for them.
(Guest Star Keith Carradine)
The 2003 Approximation
With Leonard moving out Sheldon reverts to going back to living in 2003 before he met Leonard. Stuart is looking for ideas for more customers to the shop with live music, Howard and Raj form a band together "Footprints on the moon".
The Perspiration Implementation
The guys try to take up fitness and join's Kripke's Fencing class and let's slip Sheldon and Amy have broken up and Kripke moves in on Amy. Stuart seeks help from the girls and asks advice about what would attract women to the comic shop and they start to read the online comments.
The Helium Insufficiency
Sheldon and Leonard try to beat the Swedish to a experiment and need Helium, when Kripke doesn't share, the guys find a online seller. The rest of the gang use a dating app to find Amy a new partner until she tells them she has met someone.
(Guest Star Michael Rapaport)
The Spock Resonance
Will asks Sheldon to be interviewed by Adam Nimoy about a documentary on Spock, Sheldon tries to hold back his feeling about Amy, when Sheldon goes to see Amy she is out with another man. Bernadette and Howard clash over renovating Howard's childhood home, to which Bernadette throws Howard under the bus infront of Bernadette's dad about not having children.
(Guest Stars Stephen Merchant and Adam Nimoy)
The Mystery Date Observation
Penny, Leonard and Bernadette decide to spy on Amy and Dave, Dave finds out Amy's Ex was Sheldon Cooper and starts to ask awkward questions. Sheldon asks Howard and Raj to help him find another girlfriend and makes it into a quiz.
(Guest Star Stephen Merchant)
The Platonic Permutation
Amy and Sheldon decide to visit the Aquarium as friends, Penny and Leonard decide to cook a Thanksgiving meal which Leonard makes a unexpected confession. Howard, Raj, Bernadette and Emily volunteer at a soup kitchen.
(Guest Star Elon Musk)
The Earworm Reverberation
Sheldon has a song stuck in his head and cant figure out what the son is driving him insane as well as Leonard and Penny until he realises it reminded him of Amy. After a awkward date, Amy invites Dave to her place for a meal which ends differently, Amy and Sheldon get back together and Dave walks away strangely happy.
The Opening Night Excitation
The new Star Wars movie premieres , the boys have got their tickets, only problem the night the movie is shown it's Amy's birthday and he decide to plan something differently with the help of Arthur giving him advice. Howard, Raj and Leonard decide to invite Will who roots for the home team of Star Trek.
The Sales Call Sublimation
Penny tries to see a doctor about sales and can't get a appointment, the gang entice Leonard to make a appointment and see the doctor that turn into a therapy session and letting off steam about his mother. Sheldon is with Raj in the telescopic room and discovers a new Star, will Sheldon share the discovery. Bernadette and and Howard happiness is great when Stuart announces he is moving out.
(Guest Star Jane Kaczmarek)
The Empathy Optimization
After Sheldon becomes ill and insults everyone, the gang try to plan a Sheldon Free Weekend in Vegas, unless Sheldon apologises with the help of Amy, and in the process Sheldon upsets Emily again .
The Meemaw Materialization
Sheldon's Gran (Meemaw) comes to visit and causes a arguement between herself and Amy which causes Sheldon to seek sanctuary and Penny's. Raj meets a girl called Claire at the comic book and starts to question his relationship with Emily.
(Guest Star June Sqibb)
The Valentino Submergence
Valentines day has come to Pasadena, Howard and Bernadette decide to relax in a hot tub only for a rabbit to be there and nurse it back to health, Bernadette tells the rabbit she has a secret...she is pregnant. Penny and Leonard grapple with getting old and decide to have fun. Amy and Sheldon host a live broadcast of Fun With Flags and take in calls, only Raj and Kripke are their only callers.
The Positive Negative Reaction
The pregnancy is revealed to all, the boys try to come up with a idea on how to create something and make money off it, Sheldon who is drunk may still be smart, but not smart enough when he mistakes the kitchen as a toilet.
The Celebration Experimentation
Sheldon who has never really celebrated his birthday, the gang decides he need a party.
(Guest Stars Stephen Hawkins and Adam West)
The Application Deterioration
Howard Leonard and Sheldon file a patent for their Gyroscope at Cal-tech and run into a small problem. Raj asks the girls for advice about Emily and Claire, even though Claire gives him advice from the woman's handbook.
The Solder Excursion Diversion
While working on their new project, Howard and Leonard get help from Penny and Bernadette, when the boys leave to pick up material they are lured to a free screening and inform Raj who is in the lab with Penny and Bernadette. Sheldon reveals he has a keep safe storage locker to Amy of all the things he has owned, can he let go of his stuff?
The Big Bear Precipitation
Amy and Sheldon join Penny and Leonard for a weekend in the woods where some secrets are revealed. Raj seems a bit more excited about the pregnancy than Howard and Bernadette is, forcing Howard to step up more.
The Viewing Party Combustion
Game Of thrones night is here, forcing the group to take sides after a arguement erupts which end in a visit to the hospital when Howard eats a sandwhich which contains nuts.
The Fermentation Bifurcation
Sheldon creates a new game for him and Bernadette when the rest of the group go to a wine testing bar, Penny's ex Zach shows up making thing awkward and Raj lets out he has been seeing two women in front of Claire.
The Line Substitution Solution
Sheldon is supposed to be spending time with Amy and rather go to the movies and pays Stuart to spend the day with Amy. Penny tries to connect with her new mother in law and fails and reveals she was upset she didn't get invited to the wedding, Penny decides they should have a proper wedding in front of their friends and family.
The Convergence Convergence
Tensions are high when Leonard's divorced parents turn up, which Sheldon's mother and Leonard's father leave together and cannot be contacted. Howard receives a email from from the Air Force regarding their Gyroscope and believes he is now being followed by the government.
(Guest Star Judd Hirsch)
Even though we have seen Leonard's mother in a few episodes and I never really mention her, Christine Baranski who plays Mrs Hofstadter does come out with some good remarks and see her struggling at times to keep a straight face. Even Laurie Metcalf who plays Mrs Cooper can make a good fight and stand up for herself. After Sheldon keeps talking about his MeeMaw we finally get to see her and how strong willed she is. Stephen Merchant does provide some comedy but seems to be toned down for his character for some reason even though at times it can be cringe worthy, the laughs do come a lot more.
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