That was shot at Martin Newcombe's Museum of Synthesizer Technology, where Rick and other artists talked about some of their favourite old synths for a few minutes at the opening ceremony back in the mid 90s.
A video of the opening day was made and the narrator of both videos is the same, which is probably why this clip was used. I think the museum video is still available from here but the chances are that this clip was lifted from some 'out-takes'.
http://www.vemia.co.uk/susurreal/catalogue.html