ELP Old Grey Whistle Test Works Era Video?

[The sage]

An video extract of ELP during the works tour is on youtube- What is quite special ist that is without the orchestra! This is clearly a professional shoot as it has multiple cameras and a timecode- I have a VHS of this being shown on the Old Grey Whistle Test on the BBC with Bob Harris- and its clearly during the Works tour- Its a great bit of history- Does anyone know anything about it-
It is clearly several generations but I would assume a master exists, or existed, somewhere? It would be great to have a pristine edit available of ELP close to. their prime!

[Yesjim]

Memphis TN 1977. One of the late Works Tour shows after they let the orchestra go. I've seen better footage but can't remember where, maybe an old VHS from a collector or swap meet?