The BBC does have a project to digitise the archives, partly because you just can’t get the players anymore for obsolete formats like D3 (…which most of the old

The BBC does have a project to digitise the archives, partly because you just can’t get the players anymore for obsolete formats like D3 (…which most of the old analogue 2” quad library was transferred to when that became obsolete). Although just having a digitised archive doesn’t mean it can all be made public ally available, there are lots of rights issues and so on (writers and actors will want to be paid etc.) that prevent mass access to the archive.