Ah. The reason I didn't see it is because of the way I access this forum. My bookmark takes me to the list of threads I've replied to, rather than the main forum index.
Since there were no new replies there, or I'm not subscribed to that thread, I've not seen it in ages since the last time I...
Does this list ignore British series? I don't see any qualifications in the original post that would forbid British shows. There are many that would qualify:
Just from the 60s:
THE PRISONER
SECRET AGENT (aka DANGER MAN)
THE AVENGERS
MAN IN A SUITCASE
I don't see THE GUNS OF WILL SONNETT in the 60s list. It came out through Timeless - both seasons, though edited syndication versions.
Also, a 90s series that aired on UPN called NOWHERE MAN isn't listed. It only ran one season but was released on DVD in the 2000's.