The Big Bang Theory

The Platonic Permutation - S9-E9

New this month Continuity mistake: In episode 16 of season 1, Penny is talking about making a cake for Leonard's birthday and states she knows his birthday because she was checking a horoscope for him. But in this episode she does not know when his birthday is, which leads to Leonard revealing he was secretly reading Penny's diary. (00:40:00)

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New this month Suggested correction: It's certainly possible to forget something you knew eight years ago.

LorgSkyegon

New this month This is perhaps true for two people who rarely have contact, but I would list this as a character mistake. Penny and Leonard are in a serious relationship and are married at this point.

Bishop73

New this month I forgot my wife's birthday on a number of occasions. It's one of the reasons she is now my ex-wife.

New this month There's a difference between forgetting and not knowing.

Bishop73

New this month This is also a couple who BOTH forgot it was their anniversary.

LorgSkyegon

New this month Suggested correction: She knew his birthday because she had very recently checked his horoscope. It is more than possible for someone to forget the birthday of a friend, even if you know vaguely when in the year their birthday is.

New this month But they're more than friends. They're in a relationship and married at this point.

Bishop73

The Habitation Configuration - S6-E7

Continuity mistake: When Howard is almost done moving out of his mother's house, there is a table in front of him with a measuring device in the top corner. In one shot, the device moves to the opposite corner of the table. In a few shots later, the item returns to its original position.

bobthedancingdonut
More mistakes in The Big Bang Theory

The Extract Obliteration - S6-E6

Stephen Hawking: Do you like brain teasers?
Sheldon Cooper: Oh, I love brain teasers.
Stephen Hawking: What do Sheldon Cooper and a black hole have in common? They both suck. Neener, neener.

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The Holographic Excitation - S6-E5

Trivia: In this episode, Sheldon and Amy are trying to decide on couples' themed Halloween costumes. Sheldon is standing in front of the dry erase board. There are 2 columns written on the board. One named "Couples I Like" and the other "Couples You Like." Under the "Couples You Like" column, one of the couples is Blossom and Joey. Blossom is the name of the television character played by Mayim Bialik in the 90s and Joey was one of her brothers.

More trivia for The Big Bang Theory

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