Disney's Halloween Treat (1982)

"Disney's Halloween Treat" originally aired on October 30, 1982, and was released on VHS in 1984. This video appears to be from a later Disney Channel airing:

Disney's Halloween Treat (1982) from SamDisneyDiary on Vimeo.

Another airing of "Disney's Halloween Treat," from October 1992, can be found here on YouTube, with an introduction by Michael Eisner.

Wonderful World of Disney: Halloween Hall O' Fame (1977)

Originally aired October 30, 1977.

Ichabod and Mr. Toad (1949)

Disney's retelling of the story of Ichabod Crane was released (along with an adaptation of Wind in the Willows) in theaters in 1949 as Ichabod and Mr. Toad. The Sleepy Hollow segment was shown on the "Disneyland" TV series on October 26, 1955, and included a short cartoon about the life of Washington Irving.  It was also included in Wonderful World of Disney's 1977 "Halloween Hall O' Fame" episode.

The New Misadventures of Ichabod Crane (1979)

This animated adventure features the antics of Ichabod Crane when he comes to the rescue with his motley crew of friends.

Scooby Doo: The Headless Horseman of Halloween (1976)

First aired November 23, 1976.

Little House on the Prairie: The Monster of Walnut Grove (1976)

Originally aired November 1, 1976. On Halloween night, Laura and Mary get permission from their parents to walk into town and pull off a little prank at the mercantile. Laura's imagination runs wild when she peeks into the Olesons' window and thinks she sees Nels killing Mrs. Oleson. Scared by what she has seen, Laura can't seem to get anyone to believe her. Her friend, Carl, the only person to believe her, joins the search for evidence to solve the crime. Meanwhile, Mrs. Oleson has gone away, so the two really think that she has been murdered. When Nellie and Willie hear the story, they don't believe it but decide to scare Laura and Carl by saying that their father has been digging in the cellar.