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YpxGr TIL cookie monster doesn't really eat cookies, but instead, rice cakes. This is because the oils in cookies would ruin his fur
E18k7 TIL Oscar the Grouch from Sesame Street was inspired by an incredibly rude waiter at Oscar’s Salt of the Sea Tavern, where creator Jim Henson and director Jon Stone frequently had lunch together.
8axlK TIL when Big Bird appeared on Mr. Rogers Neighborhood, Mr. Rogers wanted to do a segment where Caroll Spinney would remove his Big Bird costume, demonstrate how the puppet worked, and talk about what it's like to play Big Bird. Spinney refused to do it, not wanting to ruin the illusion for kids.