PE involved in original concept and design 1973-76.

See also .... http://www.amazon.com/The-Emergence-Video-Processing-Tools/dp/184150663X

The Emergence of Video Processing Tools: Television Becoming Unglued Paperback – May 15, 2014

by Kathy High (Editor), Sherry Miller Hocking (Editor), Mona Jimenez (Editor)