I managed to sign up to The Box and I can see that series 5 and 6 are now available as torrents. I expect the rest of them will eventually find their way to torrents as well.
It would seem that where commercial interests have failed to give us releases of these still very popular programmes, enthusiasts have stepped in and provided fans of the saga with an alternative.
I expect there will be some debate about the legality of all this, the fact remains that if you want these stories it is about the only way you are going to get them.
Bill.
[Non-text portions of this message have been removed]