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.
| Title | Once Upon a Sesame Street Christmas |
|---|---|
| Release Date | 2016-11-25 |
| Runtime | |
| Genres | Family |
| Production Companies | Sesame Workshop |
| Production Countries | United States of America |
