Question: Rudolf and Frosty's Christmas in July contained the character Frost the Snowman. In what year did the character Frost the Snowman first appear on television?
Sentence (from "Rudolph and Frosty's Christmas in July"): Rudolph and Frosty's Christmas in July (commonly known by its on-screen title as Rudolph and Frosty: Christmas in July, or simply Rudolph and Frosty) is an American crossover Christmas television special produced by Rankin/Bass, featuring characters from the company's holiday specials including "Rudolph the Red-Nosed Reindeer" and "Frosty the Snowman".
Relevant evidence: Yes