I have a similar history with SILENT RUNNING, which is to say, hardly any history at all.  Oddly enough, I bought that UK Blu-ray probably well over a year ago.  I think I'd read something that made it sound like a pretty good transfer of a pretty good film that would be well worth catching up with the rest of the world on.  But I still haven't sat down and watched it.  Or even stood up and watched it.  I shall look forward to reading what MR BK thinks after finishing it.