Are you sure you can’t get it on TV?
Hi Mandara! It’s been fairly often aired on TV — consult tvguide.com for Prisoner (or another TV listing service with a search function) for your area. PBS and A&E and possibly Bravo have been known to show it.
I had been meaning to look, but I just realied that here in Canada it’s showing on one of the digital cable channels; Mystery (Channel 99 where I live) on Saturdays. Now I don’t get that channel, nor do I own the DVDs yet — SOON! — but my parents do get it (I have several Prisoner tapes in storage, and of course I’ve seen all the eps).
Otherwise, your local library may carry the DVDs — they aint just books anymore! (I watched many from the library not too long ago- though they don’t have the complete season). Or you may have a video store which carries them.
Or you could ask scifi.com to air it! 😆