These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Danger Man
Bizarro Episode: "The Ubiquitous Mr. Lovegrove" which one could almost say (what with Don Chaffey directing, and all) that it was a beta test for The Prisoner.
Also "Koroshi" and "Shinda Shima" which featured rather Bondian OTT situations and villains. Frankly, if that was the direction they were looking to go in, no wonder McGoohan wanted out.
In a similar vein, Drake tells a character in "Yesterday's Enemies", "I want information...and I know that you deal in it." As we all know, every Number Two in The Prisoner wants "information...information...information."
Drake farewells another agent by saying "Be seeing you" in "Fish on the Hook". He will get very sick of hearing this phraselater. (Assuming you believe Drake is Number 6.)