In reply to jon_gill1:
Apart from what I told you in the e-mail one of the most scary things I did that day was to place the ariel for the radio mike so that Ron could talk to the presenter (and hear)in the Manchester studios live while we were on air.
I don't know if it's still there but there used to be a small tree growing horizontally out from the top near Darius. To get 'line of sight' for the radio mike I had to crawl out along the branch and place the ariel as far out as we could get it. Now that was exposed
.
Amazingly that day we encountered no technical problems despite all the potential hazards (not least Ron falling off, unlikely). This was a bit of a pioneering effort and the cameras had to be connected by cables to the scanner at the top of the crag, no radio links for visuals in those days, riggers took in the cables as we climbed and videoed.