The Big Bang Theory

1. Pilot

Two unorthodox theoretical physicists have their lives dramatically altered w...

2. The Big Bran Hypothesis

Penny's apartment is in disarray after Leonard and Sheldon's haphazard cleani...

3. The Fuzzy Boots Corollary

Leonard's jealousy boils over when he learns Penny is seeing someone else, le...

4. The Luminous Fish Effect

Sheldon's mother steps in to help him deal with the emotional fallout of losi...

5. The Hamburger Postulate

A dramatic turn of events challenges Leslie's complex personality as she navi...

6. The Middle Earth Paradigm

Leonard's Halloween party struggles continue as he unexpectedly runs into Pen...

7. The Dumpling Paradox

The group is thrown off balance when a surprising connection forms between Ho...

8. The Grasshopper Experiment

Raj's parents orchestrate a blind date for him, but his vocal cord paralysis ...

9. The Cooper-Hofstadter Polarization

Leonard and Sheldon's friendship is strained when Leonard wants to present th...

10. The Loobenfeld Decay

Leonard's attempt to dodge watching Penny's show falls apart when Sheldon's s...

11. The Pancake Batter Anomaly

Penny unexpectedly becomes the caretaker for ailing Sheldon, whose friends de...

12. The Jerusalem Duality

A 15-year-old prodigy's arrival sparks self-doubt in Sheldon, prompting his f...

13. The Bat Jar Conjecture

The Physics Bowl team experiences a dramatic shift when Sheldon's intense com...

14. The Nerdvana Annihilation

A malfunctioning time machine disrupts Penny's routine, causing her to lash o...

15. The Pork Chop Indeterminacy

A heated competition unfolds among Leonard, Howard, and Raj as they vie for t...

17. The Tangerine Factor

Penny is torn between accepting Leonard's date invitation and backing out, se...