THANK YOU for cluing me in to that site! Holy hell, is that a trove of vintage clips. I could easily spend hours just discovering Euro pop oddities from the early '70s.
(PS: I think BD&tH's version was an improvement over this, though.)
total accident -- the song is on the UK chart that CG is counting down next week (March '74, The Hollies at #2 with "Air That i Breathe") and I figured it had to be the same song, so some Googling and...
voila!