Step 1 : Introduction to the question "Whose discarded magic hat brings Frosty to life in the TV special "Frosty the Snowman" from 1969?"
...It all starts with a discarded silk top hat. The magic hat brings Frosty the Snowman to life and it doesn't take long for the washed-up magician Prof. Hinkle to realize what's happening. He wants his hat back from a group of schoolchildren determined to get Frosty safely to a colder climate so he won't melt come spring. Frosty and his young friend stow away on a freight train heading for the North Pole, with Prof. Hinkle in hot pursuit. The inspiration for this classic animated program is the popular Christmas song by the same name. Source: IMDb.com