I've got about half of those in my DVD collection, and they're nearly all repeated regularly on the satellite channels (Dad's Army is currently still being shown every Saturday night on the BBC). The exception is Mind Your Language, which I don't think I've seen since the '80s - it's just too politically incorrect to show again, even though it has an 8.9 rating on IMDb. I hadn't seen Waiting For God for ages until it was repeated last year.
I see that you watched the original of Porridge. Did you catch any of the new series which aired last year in the UK? It's never going to match the original, but it was quite fun, and was done by the original writers. Another Ronnie Barker sitcom which you probably watched, Open All Hours, has also been reprised as Still Open All Hours. Arkwright has passed away, and the little shop is now being run by G-G-G-G-Granville, although the hand-eating cash register is named in honor of the former owner.