Season 9

S09E01 – The Matrimonial Momentum

After driving to Vegas to get married, Penny struggles with Leonard’s confession that ...
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S09E02 – The Separation Oscillation

Leonard confronts the woman he kissed on the North Sea in an attempt ...
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S09E03 – The Bachelor Party Corrosion

The guys' science skills are put to the test when they get a ...
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S09E04 – The 2003 Approximation

Sheldon learns of an impending change in his living arrangements and decides to ...
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S09E05 – The Perspiration Implementation

The guys take a fencing lesson from Barry Kripke and Sheldon finds himself ...
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S09E06 – The Helium Insufficiency

In the midst of a nation-wide helium shortage, Sheldon and Leonard take desperate ...
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S09E07 – The Spock Resonance

Wil Wheaton interviews Sheldon for a Star Trek documentary where he reveals the ...
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S09E08 – The Mystery Date Observation

Sheldon, Wolowitz and Koothrappali post an online advertisement to find Sheldon a new ...
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S09E09 – The Platonic Permutation

Sheldon and Amy try hanging out as friends when they spend Thanksgiving together ...
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S09E10 – The Earworm Reverberation

Sheldon has a revelation when he realizes why a song was stuck in ...
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S09E11 – The Opening Night Excitation

After more than five years of dating, Sheldon and Amy spend their first ...
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S09E12 – The Sales Call Sublimation

Penny gets more than she bargained for when Leonard agrees to meet with ...
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S09E13 – The Empathy Optimization

After having to deal with a sick Sheldon, Leonard, Penny and the gang ...
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S09E14 – The Meemaw Materialization

Meemaw meets Amy, but it isn't all roses. Meemaw seems to have an ...
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S09E15 – The Valentino Submergence

Sheldon and Amy host a live Valentine's Day episode of Fun with Flags, ...
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S09E16 – The Positive Negative Reaction

When the gang finds out about Bernadette’s pregnancy, they celebrate by singing karaoke ...
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S09E17 – The Celebration Experimentation

After more than nine years together, the gang finally celebrates Sheldon’s birthday, surprising ...
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S09E18 – The Application Deterioration

Leonard, Sheldon, and Wolowitz run into problems when they file for a patent ...
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S09E19 – The Solder Excursion Diversion

Amy is shocked at a revelation from Sheldon after she buys him a ...
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S09E20 – The Big Bear Precipitation

Sheldon spills a secret of Leonard’s when the two take a weekend cabin ...
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S09E21 – The Viewing Party Combustion

Everyone must choose sides when a small argument between Leonard and Sheldon erupts ...
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S09E22 – The Fermentation Bifurcation

The gang goes to a wine bar and runs into Penny’s old boyfriend, ...
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S09E23 – The Line Substitution Solution

Sheldon hires Stuart to spend the day with Amy when he’d rather go ...
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S09E24 – The Convergence Convergence

Chaos ensues when Leonard’s recently divorced parents, Alfred and Beverly, and Sheldon’s devoutly ...
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