Meet Ed Tajchman, one of the pioneering forces behind early computer-animation tools such as Animac and Scanimate. He was the head of engineering at Computer Image, and unearthed these early demo reels, one from the late '60s and one from the '70s (a sampling of animation used in The Electric Company).

The Development of Computer Generated Animated Characters (.rm file)
Video show open and example segments from The Electric Company (.rm file)

Here's a terrific site about the history of Scanimate and computer-animation. An essential library of photos, screen grabs, videos, articles, and other related ephemera.