Season 2

Season 2 • 2008

⭐ 3.8 / 5

This season, Leonard gets a girl. So does Sheldon. Howard drives the Mars Rover into a ditch. Raj woos a terminator. Gorgeous girl-next-door Penny falls under the spell of Age of Conan. And super-smart, ueberconfident Leslie Winkler reduces mere men to spineless jellyfish.

Episodes

1. The Bad Fish Paradigm

Penny's first date with Leonard goes awry; Penny finds Sheldon to be an unwilling confidant.

2008-09-22 • 22 min

2. The Codpiece Topology

A jealous Leonard reacts to Penny's new guy by rebounding with Leslie.

2008-09-29 • 21 min

3. The Barbarian Sublimation

Sheldon creates a monster when he introduces Penny to online gaming.

2008-10-06 • 21 min

4. The Griffin Equivalency

Raj gets an inflated ego and makes a play for Penny after being referenced in a magazine article.

2008-10-13 • 21 min

5. The Euclid Alternative

Leonard and his friends stage an intervention to force Sheldon to face his fear of driving.

2008-10-20 • 20 min

6. The Cooper-Nowitzki Theorem

Sheldon and the gang are confused when a young grad student is attracted to him.

2008-11-03 • 21 min

7. The Panty Piñata Polarization

When Sheldon bans Penny from the apartment for numerous minor infractions, she decides to retaliate.

2008-11-10 • 21 min

8. The Lizard-Spock Expansion

Leonard inadvertently steals away the new woman Wolowitz thinks is the love of his life.

2008-11-17 • 20 min

9. The White Asparagus Triangulation

Sheldon is thrilled when Leonard starts dating a woman who meets Sheldon's stringent standards.

2008-11-24 • 21 min

10. The Vartabedian Conundrum

Leonard asks Penny for advice when his new relationship starts moving too fast.

2008-12-08 • 21 min

11. The Bath Item Gift Hypothesis

Penny starts dating Leonard's handsome colleague; Leonard and his friends are tortured by Sheldon's obsession with gift-giving etiquette.

2008-12-15 • 21 min

12. The Killer Robot Instability

Penny's criticism of Wolowitz's romantic life pushes him into depression and AWOL for a fighting robot battle the rest of guys are depending on him for.

2009-01-12 • 21 min

13. The Friendship Algorithm

Sheldon creates a scientific procedure for making friends.

2009-01-19 • 21 min

14. The Financial Permeability

Sheldon's solution to Penny's financial difficulty leads to a confrontation between Leonard and Penny's ex-boyfriend.

2009-02-02 • 21 min

15. The Maternal Capacitance

Leonard and Penny are drawn together after a disastrous visit from Leonard's mother.

2009-02-09 • 21 min

16. The Cushion Saturation

A paintball game leads to a fight between Sheldon and Penny, and romance for Leslie and Wolowitz.

2009-03-02 • 21 min

17. The Terminator Decoupling

Leonard, Sheldon and Wolowitz are ecstatic to learn that a famous science-fiction actress (Summer Glau) is on board the train they are taking to San Francisco.

2009-03-09 • 21 min

18. The Work Song Nanocluster

Penny's home business turns into a complete nightmare when Sheldon takes over.

2009-03-16 • 20 min

19. The Dead Hooker Juxtaposition

Penny squares off with a new beautiful female neighbor who may become the building's "new Penny."

2009-03-30 • 20 min

20. The Hofstadter Isotope

A fellow comic book enthusiast's hitting on Penny leads to Leonard and Howard going to a bar's Ladies' Night.

2009-04-13 • 20 min

21. The Vegas Renormalization

Leonard and Koothrappali escort a heartbroken Wolowitz to Las Vegas, and Sheldon becomes locked out of his apartment and must stay with Penny.

2009-04-27 • 22 min

22. The Classified Materials Turbulence

Penny's second date with Stuart sees her making a comment that gives Leonard new hope for a relationship with her. Wolowitz realizes there's a crucial error in a NASA project he's working on.

2009-05-04 • 19 min