Can a grouch find a reason to enjoy the holiday season? It's Christmas Eve on "Sesame Street", and Oscar has just received a Ghost-o-Gram. He will be visited by three ghosts tonight: a famous British Grouch, a talking Christmas Tree and a Robot. They will help Oscar examine Christmases past, present and future on Sesame Street. Will their adventures be enough to help Oscar put aside his grouchy ways in favor of the holiday spirit? Join Elmo, Big Bird, Bert, Ernie and the rest of the cast of "Sesame Street" in this heart-warming twist on the classic Charles Dickens tale.