Series 9 Episode 23

Sheldon wants to go to a special film screening, so he pays Stuart to spend the afternoon shopping with Amy so that he can queue up for the event. Penny struggles to connect with Leonard's mother.

The Matrimonial Momentum: After driving all the way to Las Vegas for her wedding to Leonard, Penny faces a dilemma

First shown: Thu 22 Oct 2015 | 19 mins

Series 9 Episode 1

The Separation Oscillation: Leonard tries to put Penny's mind at ease about their relationship

First shown: Thu 29 Oct 2015 | 18 mins

Series 9 Episode 2

The Bachelor Party Corrosion: The guys get a flat tyre during Leonard's surprise bachelor party weekend in Mexico

First shown: Thu 5 Nov 2015 | 19 mins

Series 9 Episode 3

The 2003 Approximation: Sheldon decides to revisit 2003, a simpler time before he had met either Penny or Leonard

First shown: Thu 12 Nov 2015 | 18 mins

Series 9 Episode 4

The Perspiration Implementation: The guys take fencing lessons from Barry Kripke, who expresses a romantic interest in Amy

First shown: Thu 19 Nov 2015 | 18 mins

Series 9 Episode 5

The Helium Insufficiency: Sheldon and Leonard struggle to find the supplies they need for a scientific experiment

First shown: Thu 26 Nov 2015 | 18 mins

Series 9 Episode 6

The Spock Resonance: While being interviewed for a documentary, Sheldon can't suppress his emotions about Amy

First shown: Thu 3 Dec 2015 | 18 mins

Series 9 Episode 7

The Mystery Date Observation: Sheldon enlists the help of Howard and Raj to find him a new girlfriend by posting online

First shown: Thu 10 Dec 2015 | 18 mins

Series 9 Episode 8

The Platonic Permutation: Sheldon and Amy try hanging out as friends when they spend Thanksgiving at the aquarium

First shown: Thu 17 Dec 2015 | 20 mins

Series 9 Episode 9

The Earworm Reverberation: Sheldon is driven to distraction when he can't get a familiar tune out of his head

First shown: Thu 24 Dec 2015 | 20 mins

Series 9 Episode 10

The Opening Night Excitation: Sheldon seeks advice from Penny and Bernadette while planning a treat for Amy's birthday

First shown: Thu 17 Mar 2016 | 20 mins

Series 9 Episode 11

The Sales Call Sublimation: Penny gets more than she bargained for when Leonard meets a psychiatrist

First shown: Thu 24 Mar 2016 | 18 mins

Series 9 Episode 12

The Empathy Optimization: The gang decide to treat themselves to a Sheldon-free weekend in Las Vegas

First shown: Thu 31 Mar 2016 | 18 mins

Series 9 Episode 13

The Meemaw Materialization: Sheldon is thrilled when his grandmother comes to visit, but she soon butts heads with Amy

First shown: Thu 7 Apr 2016 | 18 mins

Series 9 Episode 14

The Valentino Submergence: Sheldon and Amy host a live Valentine's Day episode of their internet show Fun with Flags

First shown: Thu 14 Apr 2016 | 19 mins

Series 9 Episode 15

The Positive Negative Reaction: When the gang hear about Bernadette's big news, they celebrate with an evening of karaoke

First shown: Thu 21 Apr 2016 | 19 mins

Series 9 Episode 16

The Celebration Experimentation: The gang persuade Sheldon to celebrate his birthday with a party in the 200th episode

First shown: Thu 28 Apr 2016 | 18 mins

Series 9 Episode 17

The Application Deterioration: Raj needs some relationship advice when Emily reaches out to him after their break-up

First shown: Thu 5 May 2016 | 18 mins

Series 9 Episode 18

The Solder Excursion Diversion: Sheldon makes a revelation when Amy buys him a new laptop. Leonard and Howard tell a lie.

First shown: Thu 12 May 2016 | 20 mins

Series 9 Episode 19

The Big Bear Precipitation: Sheldon shares a big secret about Leonard during a weekend trip to a cabin in the country

First shown: Thu 19 May 2016 | 18 mins

Series 9 Episode 20

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