February 11, 2012
I've recently contacted through YouTube the guy that uploaded the short TEB clip recorded at Hyde Park on June 7th, 1969.
He's Roger, the webmaster of the very good archive dedicated to the old band Family (http://www.familybandstand.com). He has been so kind to explain the source of the video is a French TV broadcast called "Pop Power".
If you're interested, they have a long recording from that event downloading at http://www.sendspace.com/file/gvqqub