Waking up an older thread here, but just wanted to share this... I LOVED this show as a kid, when it was shown on television. So did my father - we would watch it together.
I haven't seen a single episode of it since... all I have are limited memories of some plots and scenes, and of course the music (which I HAVE heard since).
Tonight I got a few "new" LaserDisks, and among them is.... The Prisoner, Episode 3, "A, B & C"!

I'll have to keep looking for the rest of the series (one down, sixteen to go), but now that I know they were out on LaserDisk, it gives me something else (alongside the Star Trek LDs and the "Combat" series LDs and a few others I've found some of) to work on collecting a complete set.
Tonight, shortly, after how long -- thirty-plus years? -- I'm finally going to re-watch an episode of The Prisoner! Wish it were Episode One, and I could watch them in sequence, but that's okay. I'm still going to enjoy the nostalgic "revival" of another old memory.
For anyone interested, I also picked up three of the original Star Wars LD releases tonight (one ORIGINAL "Star Wars" release and two early versions of "Return of the Jedi")... gradually assembling a complete set of the various LD releases of that series, too. Paid a buck-twenty apiece for them, and also for some cool oldies like Jules Verne's "From the Earth to the Moon". LDs are fun!