The reason why Pearl Forrester sometimes calls Crow "Art" is a reference is a piece of viewer mail that was shown on the show several years before Pearl was introduced. A child's drawing of Crow labeled the golden robot as "Arthur", and the writers latched on to this, finding it hilarious. As such they began having Pearl call Crow "Art".

Also, for the record Pearl first appeared in the Season 6 episode "Bloodlust" when she came to visit Deep 13. Dr. F was quite annoyed that his mother and TV's Frank had a long friendship in which they had been sending letters to each other for years. In fact, during this visit Pearl and Frank spent more time together than she and Dr. F did.

Pearl has also had a number of husbands over the years, all of which died horrible yet unexplanable deaths during the Honeymoons.