I was such a huge Prisoner fan when the show was re-aired in the 70s and was a member of Six of One for a number of years.
My favourite episodes are:
Arrival
Hammer Into Anvil
The Chimes of Big Ben
Many Happy Returns
Checkmate
I also really like The Girl Who Was Death.
BCNU
Mike,
I remember getting The Prisoner on LP, released by Bam Caruso I think. The LP had a booklet and a map of The Village. They were based in St. Albans, I think.