The TV personality helped Mister Rogers conduct an experiment.
Julia Child
Julia Child gracedMister Rogers' Neighborhoodwith her presence in 1974.
The famed chef came up with a recipe for the show and did a little cooking.
The Fred Rogers Company
TheStar Trek: The Next Generationalum appeared in a 1998 episode, bringing Mister Rogers a book.
David Copperfield
David Copperfield paid a magical visit toMister Rogers' Neighborhoodin 1997.
The illusionist taught Mister Rogers a magic trick.
The Fred Rogers Company
Rita Moreno
Rita Moreno found her way toMister Rogers' Neighborhoodin 1975.
The actress joined Mister Rogers for a discussion of work and family.
Koko spoke sign language with Mister Rogers and expressed her admiration for the host.
The Fred Rogers Company
Tony Bennett
Tony Bennett made a 1975 appearance onMister Rogers' Neighborhood.
The famed crooner performed on the show and did some art projects.
Big Bird
Big Bird found himself in the Neighborhood of Make-Believe in 1981.
The Fred Rogers Company
The famed character dropped byMister Rogers' Neighborhood, teaching viewers about jealousy.
Courtesy Everett Collection
The Fred Rogers Company
The Fred Rogers Company
The Fred Rogers Company
The Fred Rogers Company
The Fred Rogers Company
The Fred Rogers Company
