Sunny Days Guest: David Kamp, author, “Sunny Days: The Children’s Television Revolution That Changed America” "Sesame Street" and "Mister Rogers’ Neighborhood" were daring social experiments whose success surprised even their creators. Children's television was never the same again.  The Voice and Heart Behind Sesame Street's Autistic Puppet, Julia Guest: Stacey Gordon, autism advocate and puppeteer on Sesame Street Sesame Street has always led the way when it comes to teaching children to be respectful, kind, and compassionate towards others who might be different. That's especially true of their puppet Julia, who teaches kids how to interact with children who have autism. The voice, and heart, behind Julia has herself a long history in the worlds of puppetry and autism advocacy.