There was also a one off documentary called ' Sky watch' i believe aired by the BBC in 1975, Brilliant filming, one item that sticks in my mind was a row of 21 trucks lined up on the horizon when a Vulcan comes into view and over flies the trucks and drops a bomb (dumb) into the back of each truck. So impressive along with sots of all the main aircraft we had in service, mind you that was when we had an air force.