Superheroes: Dinosaur Exhibit - Carnegie Museum; Vegetable Treats Mister Rogers' Neighborhood : Season 10 Episode 7

Rogers brings model dinosaurs and takes viewers to a dinosaur hall at a natural history museum. Between these ventures, a dinosaur with a crown appears in the Neighborhood of Make-Believe–really a skeptical Purple Panda in costume. This is all part of Lady Elaine's ploy to scare the neighbors.