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?
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". Frosty the Snowman (film):  The program, which first aired on December 7, 1969 on CBS (where it still airs to this day), was produced for television by Rankin/Bass Productions and featured the voices of comedians Jimmy Durante as the film's narrator (Durante's final performance in a film) and Jackie Vernon as the title character.
1969