A documentary about Caroll Spinney who has been Sesame Street’s Big Bird and Oscar the Grouch since 1969. At 78-years-old, he has no intention of stopping.

This holiday special goes back in time to show how Elmo’s ancestors–not to mention those of Grover, Big Bird, Bert, Ernie, Oscar the Grouch and Cookie Monster–helped transform “the most unfriendly street in town” into the bright, kind, music-filled place it is today.