Mister Rogers' Neighborhood - Season 6 Episode 40 Potato Bugs and Cows Won't you be my neighbor?
Overview: The Neighborhood of Make-Believe holds its opera on Potato Bugs and Cows. Lady Aberlin plays Priscilla, an unsatisfied cow who wants to be a potato bug. A segment of Fred's discussion about Priscilla Cow's emotion had a cameo on a television screen in the 1995 film Casper.