Special - Once Upon a Sesame Street Christmas HBO Premiere: Friday November 25, 2016 This Friday don't miss an all-new one hour Sesame Street Christmas special on HBO. "Once Upon a Sesame Street Christmas" will premiere on Friday November 25 at 7 pm eastern, 6 pm central. 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. "Once Upon a Sesame Street Christmas" features guest stars Audra McDonald, Zosia Mamet and Jim Gaffigan (as Santa Claus). If you saw "Once Upon a Sesame Street Christmas", please like this post and share your thoughts below.