I’d list Avengers higher on the list than a few Dr.Who episodes. Danger Man was titled ‘Secret Agent’ in the US, although the spinoff series ‘The Prisoner’ might be better known than the original.
I loved Bergerac and Shoestring.
RIP.
Beregerac, Shoestring, Callan, Special Branch, The Sweeney, Hannay, Lovejoy, Arthur of the Britons