The Big Bang Theory
S09E17 The Celebration Experimentation
After being together for over nine years, the group finally throws a surprise birthday party for Sheldon, inviting a special guest to join in the celebration.
Season 9 Episodes
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The Matrimonial Momentum
The Separation Oscillation
The Bachelor Party Corrosion
The 2003 Approximation
The Perspiration Implementation
The Helium Insufficiency
The Spock Resonance
The Mystery Date Observation
The Platonic Permutation
The Earworm Reverberation
The Opening Night Excitation
The Sales Call Sublimation
The Empathy Optimization
The Meemaw Materialization
The Valentino Submergence
The Positive Negative Reaction
The Celebration Experimentation
The Application Deterioration
The Solder Excursion Diversion
The Big Bear Precipitation
The Viewing Party Combustion
The Fermentation Bifurcation
The Line Substitution Solution
The Convergence Convergence