Season 9 Episodes

Episode Guide

The Convergence Convergence

Season 9, Episode 24 - Air Date: 5/12/2016
From CBS: Chaos 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, on the ninth season finale of The Big Bang Theory.
Episode Guide

The Line Substitution Solution

Season 9, Episode 23 - Air Date: 5/5/2016
From CBS: Sheldon hires Stuart to spend the day with Amy when he’d rather go to a movie screening.
Episode Guide

The Fermentation Bifurcation

Season 9, Episode 22 - Air Date: 4/28/2016
From CBS: 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.
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The Viewing Party Combustion

Season 9, Episode 21 - Air Date: 4/21/2016
From CBS: Everyone must choose sides when a small argument between Leonard and Sheldon erupts into a heated fight during a group get-together.
Episode Guide

The Big Bear Precipitation

Season 9, Episode 20 - Air Date: 4/7/2016
From CBS: Sheldon spills a secret of Leonard’s when the two take a weekend cabin trip with Penny and Amy.
Episode Guide

The Solder Excursion Diversion

Season 9, Episode 19 - Air Date: 3/31/2016
From CBS: Amy is shocked at a revelation from Sheldon after she buys him a new laptop.
Episode Guide

The Application Deterioration

Season 9, Episode 18 - Air Date: 3/10/2016
From CBS: Leonard, Sheldon, and Wolowitz run into problems when they file for a patent for their infinite persistence gyroscope.
Episode Guide

The Celebration Experimentation

Season 9, Episode 17 - Air Date: 2/25/2016
From CBS: After more than nine years together, the gang finally celebrates Sheldon’s birthday, surprising him with a special guest.
Episode Guide

The Positive Negative Reaction

Season 9, Episode 16 - Air Date: 2/18/2016
From CBS: When the gang finds out about Bernadette’s pregnancy, they celebrate by singing karaoke.
Episode Guide

The Valentino Submergence

Season 9, Episode 15 - Air Date: 2/11/2016
From CBS: Sheldon 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.
Episode Guide

The Meemaw Materialization

Season 9, Episode 14 - Air Date: 2/4/2016
From CBS: Sheldon’s thrilled when his Meemaw comes to visit, but his excitement quickly fades when she butts heads with Amy.
Episode Guide

The Empathy Optimization

Season 9, Episode 13 - Air Date: 1/14/2016
From CBS: After having to deal with a sick Sheldon, Leonard, Penny and the gang try to treat themselves to a Sheldon-free weekend.
Episode Guide

The Sales Call Sublimation

Season 9, Episode 12 - Air Date: 1/7/2016
From CBS: Penny gets more than she bargained for when Leonard agrees to meet with a psychiatrist on her behalf.
Episode Guide

The Opening Night Excitation

Season 9, Episode 11 - Air Date: 12/17/2015
From CBS: After more than five years of dating, Sheldon and Amy spend their first night together.
Episode Guide

The Earworm Reverberation

Season 9, Episode 10 - Air Date: 12/10/2015
From CBS: Sheldon 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.
Episode Guide

The Platonic Permutation

Season 9, Episode 9 - Air Date: 11/19/2015
From CBS: Sheldon and Amy try hanging out as friends when they spend Thanksgiving together at the aquarium.
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The Mystery Date Observation

Season 9, Episode 8 - Air Date: 11/12/2015
From CBS: Sheldon, Wolowitz and Koothrappali post an online advertisement to find Sheldon a new girlfriend.
Episode Guide

The Spock Resonance

Season 9, Episode 7 - Air Date: 11/5/2015
From CBS: While being interviewed for a documentary about Spock from "Star Trek," Sheldon struggles to suppress his emotions about his recent break-up with Amy.
Episode Guide

The Helium Insufficiency

Season 9, Episode 6 - Air Date: 10/26/2015
From CBS: In the midst of a nation-wide helium shortage, Sheldon and Leonard take desperate measures to get the supplies they need.
Episode Guide

The Perspiration Implementation

Season 9, Episode 5 - Air Date: 10/19/2015
From CBS: The guys take a fencing lesson from Barry Kripke and Sheldon finds himself in an awkward position when Kripke expresses interest in Amy.
Episode Guide

The 2003 Approximation

Season 9, Episode 4 - Air Date: 10/12/2015
From CBS: Sheldon 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.
Episode Guide

The Bachelor Party Corrosion

Season 9, Episode 3 - Air Date: 10/5/2015
From CBS: The guys’ science skills are put to the test when they get a flat tire during Leonard’s bachelor party weekend in Mexico.
Episode Guide

The Separation Oscillation

Season 9, Episode 2 - Air Date: 9/28/2015
From CBS: Leonard confronts the woman he kissed on the North Sea in an attempt to set Penny’s mind at ease.
Episode Guide

The Matrimonial Momentum

Season 9, Episode 1 - Air Date: 9/21/2015
From CBS: After driving to Vegas to get married, Penny struggles with Leonard’s confession that he kissed another girl.