I did look to see if it was elsewhere, obviously I didn't look enough.
The easiest way to check is to use the forum search box on the left, plug in the YouTube id
LuDS23vjlaY. But as Stewart rightly says that would have robbed us of the opportunity of seeing it again, it's worth repeating and there are always some who haven't seen it before.
For the record, the previous postings are
Malvern 70's Style,
Morgan on Thames TV 1975 and Stewart's original post
Morgan in 1975 which has a lot of interesting responses.
~iw