I know - many of these events are recorded professionally but never "officially" see the light of day. The TV production company that a very good friend of mine worked at recorded the KLF Barbican gig back in 1997, but it never "officially" got released. To that same end I expect that the entire performance from Friday night was filmed, but will end up on a shelf somewhere. Oh...it was suggested that it was Gimpo who was running around during Jimmy's performace with a strobe light - it looked (from where I was sitting) that the strobe was attached to a video camera - could well be rather interesting footage from that one!!!
There even was another team (!) with a mixing desk and a huge TV camera, and from what we know from the Barbican's employees, these were no shots for themselves. BBC maybe ?