Thanks for the reference. The BBC series is actually called "The Secret War":
https://en.wikipedia.org/wiki/The_Secret_War_(TV_series)
There is also a related book "Most Secret War":
https://en.wikipedia.org/wiki/The_Secret_War_(TV_series)
There is also a related book "Most Secret War":
The book accompanying the TV series is also brilliant:
https://archive.org/details/secretwar0000john
It goes into more detail about many things that didn't make it into the TV series.
RV Jones' book is great, if you enjoyed it, his follow up book, "Reflections on Intelligence", covers a lot of secrets that he couldn't mention at the time of publishing his original book.
A quick googling lead me down a path that found out that the CIA has an award in his honour! https://en.wikipedia.org/wiki/R._V._Jones_Intelligence_Award