• The Big Bang Theory Saison 3 Épisode 6

• • 20

Sheldon becomes Leonard’s teacher in order to understand football, while an incident with flying a kite threatens Howard and Raj’s friendship.

• The Big Bang Theory Saison 3 Épisode 5

• • 21

After overhearing that Wil Wheaton is entering a trading-card competition, Sheldon decides to enter it himself. Meanwhile, Penny sets up one of her friends on a date with Wolowitz.

• The Big Bang Theory Saison 3 Épisode 4

• • 21

Raj must find a new job or be sent back to India, but Sheldon has a solution, which leaves Leonard and Penny dealing with Howard as a third wheel.

• The Big Bang Theory Saison 3 Épisode 3

• • 20

Howard and Raj visit a Goth nightclub to pick up women while Sheldon attempts to build a better Penny using chocolate-based behavior modification.

• The Big Bang Theory Saison 3 Épisode 2

• • 21

Leonard and Penny struggle to recover from an awkward first hookup while Sheldon and Howard stake their best comic books on a bet to determine the species of a cricket.

• The Big Bang Theory Saison 3 Épisode 1

• • 22

When Sheldon learns the guys tampered with his expedition data he got from the arctic, he leaves to Texas in disgrace. This results in the guys following him, which threatens Leonard’s hope for some romantic time with ...

• The Big Bang Theory Saison 2 Épisode 14

• • 21

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

• The Big Bang Theory Saison 2 Épisode 13

• • 21

Sheldon creates a scientific procedure for making friends.

• The Big Bang Theory Saison 2 Épisode 12

• • 21

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.

• The Big Bang Theory Saison 2 Épisode 11

• • 21

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

• The Big Bang Theory Saison 2 Épisode 10

• • 21

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

• The Big Bang Theory Saison 2 Épisode 9

• • 21

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

• The Big Bang Theory Saison 2 Épisode 8

• • 20

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

• The Big Bang Theory Saison 2 Épisode 7

• • 21

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

• The Big Bang Theory Saison 2 Épisode 6

• • 21

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

• The Big Bang Theory Saison 2 Épisode 5

• • 20

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

• The Big Bang Theory Saison 2 Épisode 4

• • 21

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

• The Big Bang Theory Saison 2 Épisode 3

• • 21

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

• The Big Bang Theory Saison 2 Épisode 2

• • 21

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

• The Big Bang Theory Saison 2 Épisode 1

• • 22

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

• The Big Bang Theory Saison 1 Épisode 17

• • 20

Penny’s break-up spurs Leonard to summon the courage to ask her out, and each goes to Sheldon for advice on their upcoming date.

• The Big Bang Theory Saison 1 Épisode 16

• • 20

Penny wants to throw a surprise party for Leonard, but Sheldon’s indulgence at an electronics store throws her off-track.

• The Big Bang Theory Saison 1 Épisode 15

• • 22

The rest of the gang fall for Sheldon’s twin sister, and Leonard’s plan to win her heart is derailed when Sheldon declares he’ll be the one to decide who can date her.

• The Big Bang Theory Saison 1 Épisode 14

• • 20

When delivery of another collectible leads to Penny’s lashing out at Leonard, he decides it’s time to give up his habit, much to his friends’ protestation.