Assuming that you're getting the Amazon stream at full quality with no streaming issues, I think that it's going to look about equal to the DVD. So buying the DVD would be a good way to guarantee ownership and have a nice physical copy for your shelf, but in this case, I don't think the U.S...
I used to do a little work on Masterpiece, so I might be able to answer this for you. It's been a while since I worked at PBS, so I'm going from memory here, so a few of the details may be a little off, but I think the gist of what I'm saying is accurate.
Masterpiece edits pretty much...