David Attenborough BBC Natural History documentaries

[Guernica78]

I thought there would be existing threads already but my searches were quite futile. (Apologies if there are and my searches were in accurate)

For quite a while I’ve been wanted to collect and build up a library of the great David Attenborough nature documentaries he’s made for the BBC. is there a list of releases out there or can anyone advise. I know there’s a lot but it’s confusing as to what releases there are. I surprising amount still seems to be on DVD where as Blue Planet is on Blurray but Blue Planet 2 is on 4k.

Anyone got any advice or is it worth getting certain box sets. I feel I may have bitten off more than I can chew so anyone with an interest in this please feel to add to the thread.