I remember the film. Very good, but had some strangely surreal scenes in it if I recall.
These old programs can be found. I recently chased down the series "Game, Set & Match" based on Len Deighton's books and starring Ian Holm.
I did a quick search for "First and Last" and there is evidence that people have acquired copies ...
http://www.theanswerbank.co.uk/Media-and-TV/Question642920.html
... (ps. that should be "purenostalgia" in the link)
Keep digging ...
Garfield