AVAILABLE EPISODES
Brilliant physicist roommates Leonard and Sheldon meet their new neighbor Penny, who begins showing them that as much as they know about science, they know little about actual living.
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Leonard volunteers to sign for a package in an attempt to make a good impression on Penny, but when he enlists Sheldon for help, his attempt at chivalry goes terribly awry.
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Sheldon's getting fired forces him to explore what life has to offer outside physics, leaving Leonard to take drastic action to snap his friend out of his funk.
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With Wolowitz AWOL with one of her friends, Penny's recruited to fill in for him on the guys' Halo team.
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Raj's parents set him up on a blind date, and when he discovers he can talk to her, she shows interest in Sheldon.
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With the rest of the gang off on a desert camping trip to view the Leonid meteor shower, Sheldon must play hero after Penny slips in the tub and dislocates her shoulder.
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The guys get Zack and Penny to join their Justice League costume for a New Year's Eve bash at the comic book store.
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Penny and Bernadette go to San Diego for a pharmaceutical sales convention, leaving Howard in charge of the kids. Sheldon finds a book on experimenting on kids, and the guys plus Amy make a day of it.
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Pemberton and Campbell charm America on a publicity tour, so Sheldon and Amy bring Nobel laureates Kip Thorne, George Smoot, and Frances Arnold to their side. Halley's fear of the dark leads to conflict for Howard, Bernadette and Stuart.
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Amy has a meltdown due to the pressure associated with winning a Nobel Prize. Raj and Howard try to relive the good old days after Howard buys a scooter that looks like the one he had years ago.
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Raj is worried people won't take him seriously in his own field after publishing a paper that suggests he may have discovered alien life. Leonard wants to be the principal investigator on a plasma physics study.
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Amy and Sheldon wait for the news. Howard and Bernadette leave their kids. Leonard and Penny keep a secret.
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In the series finale, Bernadette and Howard leave their kids for the first time; Penny and Leonard try to keep a secret; Sheldon and Amy stick together; and Raj makes a new friend, as the gang travels together into an uncharted future.
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About
Leonard and Sheldon are brilliant physicists, the kind of ''beautiful minds'' that understand how the universe works. But none of that genius helps them interact with people, especially women. All this begins to change when a free-spirited beauty named Penny moves in next door.