It seems that apart from it's own in house productions, Century 21 also handled the merchandising rights for, amongst other things
The Prisoner, and at some point several story ideas landed on the desk of Alan Fennell, editor of TV Century 21.
I can imagine a Prisoner comic strip story, during that time might have helped the reader answer a few questions regarding the more obscure aspects of the series.
I'm speculating, rightly or wrongly, that the TV 21 scripts might have concentrated more on the fantastical side of
The Prisoner, rather than the allegorical aspects.
Science fiction themes did feature quite heavily in the series. Apart from'
Rover', the mysterious autonomous guardian of The Village,, there was cloning, mind transfer, and rockets!
However it was not to be in any event. Mr Fennell felt that The Prisoner wouldn't have sat well with the comic's content and so the scripts were rejected.
It does lead me to wonder what did Century 21 licence regarding
The Prisoner. I've heard stories that Patrick McGoohan was averse to any merchandise or comics related to his series, and was reluctant to get involved in that side of things.
The only thing I can think of that Century 21 did relating to
The Prisoner was a painted front cover on TV Tornado drawn by Mick Anglo.
In fact, the only piece of official merchandise I can think of that was released at the time of The Prisoner's first showing was the Dinky Mini Moke, painted to look like the Village Taxi.