This turned up today - APT-E in the middle of it.
This also contains footage of the then BR Chairman, Sir Richard Marsh. When I went to the local Polytechnic here, there was a tradition of having "spurious students" on the register, and seeing how long it took them to spot it. We were all 'sponsored' by various organisations, Coal Board, large companies, etc. They soon spotted E Worthington, who was meant to work for Bass Brewery in Burton on Trent, partly as they wrote it down as "Worthington E" (a well-known beer of the time), but they completely fell for Dick Marsh and his alleged employer being BREL in Derby - eventually, the college wrote to complain about his lack of attendance - and got a letter back from Sir Richard saying "Ever been had?".