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.

Elmo is the host of his very own talk show and he's going to bring you some (not-too-late) fun with this celeb-studded talk show, bringing familiar Sesame Street friends like Elmo, Cookie Monster, celebrity guests, and laughs the whole family can enjoy!