The Big Bang Theory

Seasons

The Big Bang Theory

Season 1 (2008)

Leonard and Sheldon discover they have a new neighbour when Penny moves in across the hall; Penny is furious with the boys when she discovers they cleaned her messy apartment in the middle of the night while she was sleeping; and Leonard spends an evening out with Penny but doesn't have the courage to reveal his true feelings for her.

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The Big Bang Theory

Season 2 (2009)

Leonard and Penny return from their first proper date; Penny becomes addicted to an online video game; and Raj lets fame go to his head after he is included in a magazine's list of visionaries under 30 to watch.

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The Big Bang Theory

Season 3 (2016)

The guys return home from a three-month expedition at the North Pole; Penny finally reveals her true feelings for Leonard; and Sheldon and Howard put their most valuable comic books on the line on a bet to determine the species of a cricket.

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The Big Bang Theory

Season 4 (2011)

Howard gets his genitals stuck in a robotic arm he brought home from his lab; Sheldon changes his diet in a bid to boost his chances of extending his life expectancy; and Raj annoys Sheldon by buying a large table for the office they are sharing.

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The Big Bang Theory

Season 5 (2012)

Penny regrets sleeping with Raj; Leonard tries to spice up his long-distance relationship with Raj's sister, Priya (Aarti Mann), with cybersex; and Sheldon decides to let a dice make trivial decisions for him so he can free up his mind for more important things.

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The Big Bang Theory

Season 6 (2013)

Howard communicates with Bernadette and his mother from the International Space Station; Penny confesses to Amy and Bernadette that she is unsure about her feelings for Leonard; and Howard annoys everybody by connecting every conversation with his time in space.

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The Big Bang Theory

Season 7 (2014)

Bernadette and Amy visit an out-of-town conference; Howard experiences an unusual emotional reaction; and the friends compete in a scavenger hunt designed by Raj to test their scientific knowledge and life skills.

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The Big Bang Theory

Season 8 (2015)

In Season 8, Sheldon's epic railway journey ends in chaos, Amy plays Penny and Bernadette off against each other, and Howard is asked to throw the first pitch at a baseball game.

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The Big Bang Theory

Season 9 (2016)

In Season 9, Penny struggles with Leonard's confession that he kissed another woman, Sheldon films a special episode of Fun with Flags, and the guys' skills are tested by a flat tyre.

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The Big Bang Theory

Season 10 (2016)

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