1. The Electric Can Opener Fluctuation

Discovering Leonard, Raj and Howard fudged the results of his Arctic research ex... More

2. The Jiminy Conjecture

Sheldon and Howard wager comic books over a cricket's species. Meanwhile, a less... More

3. The Gothowitz Deviation

Howard takes Raj along to check out the Goth dating scene. Sheldon uses chocolat... More

4. The Pirate Solution

Facing a return to India, Raj needs a job desperately enough to consider working... More

5. The Creepy Candy Coating Corollary

Sheldon looks forward to squaring off against a Star Trek actor in a fantasy car... More

6. The Cornhusker Vortex

Hoping to fit in with Penny's football-loving friends, Leonard gets tutored in t... More

7. The Guitarist Amplification

Leonard and Penny's first big fight sees Sheldon playing mediator due to childho... More

8. The Adhesive Duck Deficiency

With the rest of the gang off on a desert camping trip, Sheldon must play hero a... More

9. The Vengeance Formulation

Barry Kripke pranks Sheldon during his spot on NPR, leaving him wanting vengeanc... More

10. The Gorilla Experiment

Penny seeks Sheldon's help to better comprehend Leonard's physics work. Wolowitz... More

11. The Maternal Congruence

A Christmas visit from his mother has Leonard discovering she's kept a lot of ne... More

12. The Psychic Vortex

Leonard is aghast to find out that Penny believes in psychics. Sheldon tries to ... More

13. The Bozeman Reaction

A robbery of their apartment sees Leonard and Sheldon call on their friends to d... More

14. The Einstein Approximation

Stuck on the solution to a physics problem, Sheldon tries different methods to c... More

15. The Large Hadron Collision

When Leonard is offered a trip to Switzerland on Valentine's Day to see a partic... More

16. The Excelsior Acquisition

An appearance in traffic court comes at the worst possible time for Sheldon, the... More

17. The Precious Fragmentation

The guys go to a garage sale and find a ring from the Lord of the Rings films, a... More

18. The Pants Alternative

Sheldon's fear of speaking in front of large groups threatens his ability to acc... More

19. The Wheaton Recurrence

Sheldon squares off at the bowling alley against nemesis Wil Wheaton. Leonard's ... More

20. The Spaghetti Catalysis

Subsequent to Leonard and Penny's break-up, Sheldon tries to hide from Leonard a... More

21. The Plimpton Stimulation

Sheldon hosts a visiting female physicist, but her intelligence seems matched by... More

22. The Staircase Implementation

A squabble over the thermostat setting leads to Leonard going over to Penny's an... More

23. The Lunar Excitation

Howard and Raj set Sheldon up on an Internet dating site. Penny discovers that s... More