Leonard y Sheldon son dos físicos superdotados que comparten piso. Ambos son capaces de calcular las probabilidades de existencia de vida en otros planetas, pero son incapaces de relacionarse con los demás y especialmente con las chicas. Penny, su nueva vecina, es el polo opuesto a ellos, por lo que su llegada al edificio alterará la tranquila vida sentimental de Leonard y el desorden obsesivo-compulsivo de Sheldon.
Fecha de emisión: 2009-09-21
Duración: 22 min
Sinopsis: 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 Penny and the guys' friendship with Sheldon.
Fecha de emisión: 2009-09-28
Duración: 21 min
Sinopsis: 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.
Fecha de emisión: 2009-10-05
Duración: 20 min
Sinopsis: Howard and Raj visit a Goth nightclub to pick up women while Sheldon attempts to build a better Penny using chocolate-based behavior modification.
Fecha de emisión: 2009-10-12
Duración: 21 min
Sinopsis: 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.
Fecha de emisión: 2009-10-19
Duración: 21 min
Sinopsis: 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.
Fecha de emisión: 2009-11-02
Duración: 20 min
Sinopsis: Sheldon becomes Leonard's teacher in order to understand football, while an incident with flying a kite threatens Howard and Raj's friendship.
Fecha de emisión: 2009-11-09
Duración: 19 min
Sinopsis: A squabble between Leonard and Penny sees Sheldon playing mediator, though out of his own incovenience from the sitiation rather than altruism.
Fecha de emisión: 2009-11-16
Duración: 21 min
Sinopsis: With Leonard, Howard and Raj away camping in the desert, an injured Penny has only Sheldon to rely on.
Fecha de emisión: 2009-11-23
Duración: 19 min
Sinopsis: After he's humiliated on National Public Radio, Sheldon vows to destroy Kripke, while Wolowitz tries not to destroy his new relationship with Bernadette.
Fecha de emisión: 2009-12-07
Duración: 21 min
Sinopsis: Penny gets help from Sheldon in order to understand what Leonard's work is, while Wolowitz develops a jealousy when Leonard starts hanging out with his new girlfriend.
Fecha de emisión: 2009-12-14
Duración: 20 min
Sinopsis: A Christmas visit from his mother has Leonard discovering she's kept a lot of news from him that she shares with Sheldon and worrying if she'll approve of his romance with Penny.
Fecha de emisión: 2010-01-11
Duración: 19 min
Sinopsis: Leonard is aghast to find out a secret of Penny's: she believes in psychics. Meanwhile, Sheldon tries to assist Koothrappali in picking up a girl at a university mixer.
Fecha de emisión: 2010-01-18
Duración: 20 min
Sinopsis: When their apartment is robbed, Leonard and Sheldon turn to their friends to create a state-of-the-art security system.
Fecha de emisión: 2010-02-01
Duración: 19 min
Sinopsis: Sheldon's search for the answer to a physics problem leads him to work at the Cheesecake Factory with Penny.
Fecha de emisión: 2010-02-08
Duración: 21 min
Sinopsis: Leonard can only bring one guest on a trip to see CERN's Large Hadron Collider (the world's largest and highest energy particle accelerator) in Switzerland on Valentine's Day.
Fecha de emisión: 2010-03-01
Duración: 21 min
Sinopsis: Sheldon winds up in traffic court when he gets a ticket because of Penny.
Fecha de emisión: 2010-03-08
Duración: 20 min
Sinopsis: When the guys find a ring from "The Lord of the Rings" at a garage sale, it threatens to tear them apart.
Fecha de emisión: 2010-03-22
Duración: 21 min
Sinopsis: Sheldon's friends come to his aid when his fear of public speaking stands between him and a coveted award.
Fecha de emisión: 2010-04-12
Duración: 21 min
Sinopsis: A fight between Leonard and Penny threatens their relationship, while Sheldon battles Wil Wheaton in bowling.
Fecha de emisión: 2010-05-03
Duración: 20 min
Sinopsis: When Leonard and Penny aren't speaking, Sheldon goes to extremes to keep them both happy.
Fecha de emisión: 2010-05-10
Duración: 21 min
Sinopsis: Leonard and Sheldon compete for the attention of a famous female physicist.
Fecha de emisión: 2010-05-17
Duración: 20 min
Sinopsis: Leonard tells Penny about how he met Sheldon for the first time...and what happened to the elevator.
Fecha de emisión: 2010-05-24
Duración: 20 min
Sinopsis: While Penny worries that dating Leonard has ruined her for normal guys, Wolowitz and Koothrappali search for Sheldon's perfect match online.
