Question: Frosty's Winter Wonderland is a 1976 animated Christmas television special that is a sequel to an animated Christmas special that first aired on December 7th, 1969, that features what comedian as the film's narrator?
Sentence (from "Frosty the Snowman (film)"): Frosty the Snowman is a 1969 animated Christmas television special based on the song "Frosty the Snowman".
Relevant evidence: No