Not everything is shot on 35mm film.Regardless how much money you spend, you can't do wonders with less than 10Mbit MPEG-2 compression. I own very few DVD's, so I couldn't find any outstanding examples. The DC sequence in Batman Begins is an example.
Whatever they used for the DVD transfer. I'm seeing a pretty huge difference. Not everything depends on the resolution of course. Some of the things that help improve the picture are the lack of visible macro-block artifacts, lack of banding and a lack of general noise artifacts around sharp edges, such as opening credits.
I don't think so. TV-shows produced during the 90's usually have terrible sources.Downscaling 1920*1080 looks far better than upscaling 720*480, especially with a viewing distance of less than a metre. I thought that'd be obvious.
Anyway, another great benefit of Blu-ray is that we don't have to deal with the PAL speedup nonsense any more, or the terrible NTSC->PAL transfers.