I find it ironic that I watched that program (That's Incredible!) as a child and grew to train with former WHRDA people. I didn't make the connection, of course, until seeing vids like this one within the last 10 years.
I'll see if I can find the one where Do Joo Nim puts a rod through his arm and carries a bucket filled with water from it.
Man!!! I love Jack Palance. Was that from 'Ripley's Believe It or Not'?
Gotta love these videos from the late 1970's and early 1980's. I love the slow-motion and soft music as opposed to the lightening fast techniques and rock music of today.