- Beginning with Season Two the spelling of "Rosey"'s name inexplicably changes to "Rosie." In the comics, the spelling did not change until 1995.
- An unconfirmed rumor exists that her middle name is Uniqua and she shares the surname Jetson.
- She has a Brooklyn accent.
- She seldom calls George and Jane by their first names, preferring to call them "Mr. and Mrs. Jetson", or "Mr. and Mrs. J."
- Sometimes, her antennae will flash and she will make a beeping sound.
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