Season
Season 12 Episode
- Season 9 The Matrimonial Momentum
- Season 9 The Separation Oscillation
- Season 9 The Bachelor Party Corrosion
- Season 9 The 2003 Approximation
- Season 9 The Perspiration Implementation
- Season 9 The Helium Insufficiency
- Season 9 The Spock Resonance
- Season 9 The Mystery Date Observation
- Season 9 The Platonic Permutation
- Season 9 The Earworm Reverberation
- Season 9 The Opening Night Excitation
- Season 9 The Sales Call Sublimation
- Season 9 The Empathy Optimization
- Season 9 The Meemaw Materialization
- Season 9 The Valentino Submergence
- Season 9 The Positive Negative Reaction
- Season 9 The Celebration Experimentation
- Season 9 The Application Deterioration
- Season 9 The Solder Excursion Diversion
- Season 9 The Big Bear Precipitation
- Season 9 The Viewing Party Combustion
- Season 9 The Fermentation Bifurcation
- Season 9 The Line Substitution Solution
- Season 9 The Convergence Convergence
The Big Bang Theory - Season 9 Episode 18 The Application Deterioration
7.91 22 minutes Leonard, Sheldon, and Wolowitz run into problems when they file for a patent for their infinite persistence gyroscope. Also, Penny, Amy and Bernadette give Koothrappali dating advice when Emily reaches out to him after their breakup.
