Excellent find!

It doesn't seem to far-fetched to think that someone in the community has an actual video recording of this. Babyhum, perhaps? Or anyone else?

--SKot

EDIT: I found someone does have the video of it here, but it's on a defunct format where the player is apparently rarer than the actual show they recorded. Good to find out as well here that the BBC does have this show in their archives, so there's hope that it could find release someday (if they ever get around to it). Not always the case with the BBC, whose infamous non-forward-thinking policies in the early days caused many shows to be lost forever as they were wiped or recorded over after broadcast.