I found this rare video footage of Senior Grand Master Ed Parker performing techniques in slow motion for demonstration purposes back in the early 1960's:
It is fascinating viewing for Kenpoists everywhere as you can name the techniques being performed from what is now the modern syllabus. Mr Parker's movement is fluid and precise, a joy to watch!
Updated 2021 : note that the above post is out-of-date, given this post was originally published in 2009, but is left here for archival purposes. I have fixed the link to the correct video, as the previously linked copy has been removed from YouTube.