Interestingly, that series of public information films featuring Saville have been expunged from history and are no more. They were quietly removed from the National Archives.
There is plenty of them on youtube:
https://www.youtube.com/results?search_query=jimmy+savile+clunk+click
Along with many of the ‘This is the age of the train’ ads.
p.s. There is just one ‘L’ at the end of Savile – it ends in vile.
Dave