> For most movies from the 80s and 90s it's not like you're going to notice a difference going to Blu Ray or UHD streaming.

Complete crock of shit. Movies from the 80s and 90s were usually shot on 35mm - DVD quality does not begin to extract the detail nor the dynamic range in these films.

It’s not a subtle difference.

And if bitstarving is an issue it’s usually going to be DVD. No amount of encoder magic can overcome MPEG-2 inherent shortcomings.