The Big Bang Theory

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New this month Continuity mistake: In the early episodes, Leonard is depressed and buys cat stuff. He comments that he has taken in to account Sheldon's asthma with a hyper allergenic cat. Later in the series it is Leonard with asthma and Sheldon who gets all the cats.

Show generally

New this month Continuity mistake: In the beginning of the series Sheldon knocks on Penny's door only once. Later in the series Sheldon explains he has always knocked 3 times because he walked in on his father with another woman.

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New this month Suggested correction: Sheldon goes through phases of his mannerisms. This is pointed out a few times across the show.

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