The Big Bang Theory
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24 episodes
1. The Robotic Manipulation
1. The Robotic Manipulation
Penny finds herself along for the ride on Sheldon's first date ever. Meanwhile, Wolowitz finds a new use for a robotic arm.
21min
Sep 22, 2010
2. The Cruciferous Vegetable Amplification
2. The Cruciferous Vegetable Amplification
When Sheldon realizes he won't live long enough to download his consciousness into a robot body, he attempts to extend his lifespan. Apple Co-Founder STEVE WOZNIAK guest stars.
21min
Sep 29, 2010
3. The Zazzy Substitution
3. The Zazzy Substitution
Sheldon and Amy (MAYIM BIALIK) break up.
22min
Oct 6, 2010
4. The Hot Troll Deviation
4. The Hot Troll Deviation
An embarrassing secret of Wolowitz's comes to light, while Sheldon and Raj have a small war at work. KATEE SACKHOFF and GEORGE TAKEI guest star as Wolowitz's love gurus.
20min
Oct 13, 2010
5. The Desperation Emanation
5. The Desperation Emanation
Amy wants Sheldon to meet her mother.
21min
Oct 20, 2010
6. The Irish Pub Formulation
6. The Irish Pub Formulation
A visit from Raj's sister creates tension among the guys.
22min
Oct 27, 2010
7. The Apology Insufficiency
7. The Apology Insufficiency
ELIZA DUSHKU guest stars as an FBI Agent.
22min
Nov 3, 2010
8. The 21-Second Excitation
8. The 21-Second Excitation
When the guys camp in line for a screening, their plans are thwarted by Sheldon's greatest nemesis, WIL WHEATON (guest starring as himself).
19min
Nov 10, 2010
9. The Boyfriend Complexity
9. The Boyfriend Complexity
Penny pulls Leonard into a lie when her dad comes to visit.
21min
Nov 17, 2010
10. The Alien Parasite Hypothesis
10. The Alien Parasite Hypothesis
Sheldon's girlfriend is attracted to another man.
20min
Dec 8, 2010
11. The Justice League Recombination
11. The Justice League Recombination
Penny's new boyfriend wants to hang out with the guys.
20min
Dec 15, 2010
12. The Bus Pants Utilization
12. The Bus Pants Utilization
Leonard and Sheldon fight for control of a project.
22min
Jan 5, 2011
13. The Love Car Displacement
13. The Love Car Displacement
Tension runs high when everyone is staying at the same hotel for a science event and Wolowitz worries he can't measure up to Bernadette's ex-boyfriend (guest star RICK FOX).
21min
Jan 19, 2011
14. The Thespian Catalyst
14. The Thespian Catalyst
Sheldon takes acting lessons from Penny.
22min
Feb 2, 2011
15. The Benefactor Factor
15. The Benefactor Factor
A wealthy donor to the university (guest star JESSICA WALTER) makes Leonard consider how far he's willing to go for the sake of science.
20min
Feb 9, 2011
16. The Cohabitation Formulation
16. The Cohabitation Formulation
As Howard contemplates taking things with Bernadette to the next level, he must choose between his girlfriend and his mother. Leonard rekindles his relationship with Raj's sister.
21min
Feb 16, 2011
17. The Toast Derivation
17. The Toast Derivation
Sheldon decides to get a new group of friends.
21min
Feb 23, 2011
18. The Prestidigitation Approximation
18. The Prestidigitation Approximation
Leonard's girlfriend asks him to stop seeing Penny.
21min
Mar 9, 2011
19. The Zarnecki Incursion
19. The Zarnecki Incursion
Sheldon's online gaming character gets robbed.
22min
Mar 30, 2011
20. The Herb Garden Germination
20. The Herb Garden Germination
Gossip spreads like wildfire - thanks to Sheldon & Amy.
21min
Apr 6, 2011
21. The Agreement Dissection
21. The Agreement Dissection
Leonard's girlfriend puts Sheldon in his place.
21min
Apr 27, 2011
22. The Wildebeest Implementation
22. The Wildebeest Implementation
Raj attempts to solve his problem with talking to women.
21min
May 4, 2011
23. The Engagement Reaction
23. The Engagement Reaction
Howard finally tells his mom he's marrying Bernadette.
20min
May 11, 2011
24. The Roommate Transmogrification
24. The Roommate Transmogrification
After hearing Leonard and Priya indulge in a Star Trek bedroom fantasy, Raj moves in with Sheldon on the fourth season finale.
22min
May 18, 2011
