Starring: Beatrice Arthur, Betty White, Estelle Getty, Rue McCLanahan
The Audit - S3-E10
Other mistake: Towards the end of the episode, Stan gives Dorothy a box with the ring in it she pawned earlier. But she says "my ring!" before even opening it - she had no clue it was that same ring rather than a different one.
The Big Bang Theory
The exclamation point carving on the back of the front door was carved by Bea Arthur the first day on set. It can be seen throughout the show's entire seven seasons.
A new menu and more - thoughts welcome...
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