The Big Bang Theory

1. The Matrimonial Momentum

Penny struggles with Leonard's confession that he kissed another woman as the...

2. The Separation Oscillation

Leonard and Penny try to work through their marital issues. Meanwhile, Sheldo...

3. The Bachelor Party Corrosion

The guys's skills are put to the test when they get a flat tire on the way to...

4. The 2003 Approximation

An impending change to his living arrangements inspires Sheldon to revert to ...

5. The Perspiration Implementation

Kripke expresses interest in Amy while leading a fencing lesson for the guys....

6. The Helium Insufficiency

Leonard and Sheldon go to great lengths to secure the helium they need during...

7. The Spock Resonance

While being interviewed for a documentary about Spock from Star Trek (1966), ...

9. The Platonic Permutation

On Thanksgiving, Sheldon and Amy try to spend time together as friends and go...

10. The Earworm Reverberation

Sheldon has a revelation when he realizes why a song was stuck in his head. M...

11. The Opening Night Excitation

Leonard, Howard and Raj have to decide who will take their extra Star Wars mo...

12. The Sales Call Sublimation

Penny gets more than she bargained for when Leonard agrees to meet with a psy...

13. The Empathy Optimization

After being forced to deal with a sick Sheldon, the rest of the gang try to t...

14. The Meemaw Materialization

Sheldon is thrilled when his Meemaw comes to visit, but his excitement quickl...

15. The Valentino Submergence

Sheldon and Amy host a Valentine's Day episode of "Fun with Flags", Leonard a...

16. The Positive Negative Reaction

Bernadette reveals her pregnancy to Howard and the rest of the gang.

17. The Celebration Experimentation

The gang convinces Sheldon to celebrate his birthday and throw him a party.

18. The Application Deterioration

Leonard, Sheldon, and Howard run into problems when they file for a patent fo...

19. The Solder Excursion Diversion

Amy is shocked at a revelation from Sheldon after she buys him a new laptop. ...

20. The Big Bear Precipitation

Secrets are revealed when Amy and Sheldon join Penny and Leonard on a weekend...

21. The Viewing Party Combustion

The gang pick sides when a small argument between Leonard and Sheldon erupts ...

22. The Fermentation Bifurcation

Sheldon and Bernadette spend the evening together while the rest of the gang ...

23. The Line Substitution Solution

Sheldon hires Stuart to spend the day with Amy when he would rather go to the...

24. The Convergence Convergence

Leonard and Penny try to have a wedding ceremony that everyone can attend, bu...