Congratulations. You've just graduated to ... well... I don't know what .... but clearly your knowledge and understanding of video is improving -- you're seeing video for what it is. The idea of "it's professional, so it must be good" has been discarded, as it should be.
Blu-ray is an easy target these days. Sony loves to tell you how everything looks better, how it's much clearer than DVD, blah blah blah. Yes, it has more resolution, it CAN BE sharper (but isn't necessarily). Whoop-dee-doo. With all the "extra picture" from higher resolution comes grain and noise -- and in many cases, film flicker. Quite a few pre-digital-age movies (which is, of course, most catalogs) look terrible.
I recently bought The Postman on Blu-ray because it was $10 vs the $20 DVD. I wish I'd have bought the DVD instead. This Blu-ray has so much luma-based flicker that I almost can't stand to watch it. The DVD, with it's long GOP MPEG-2 encoding, tends to hide errors like that. Same for the film grain.
About 4 years ago, Thundercats fans raised hell at the awful conversion done on the DVD releases. There was obvious blue/red chroma noise in the image, making it look like near-raw dumps off broadcast tape masters, across a composite connection.
Most B&W film and TV is treated like garbage, given no respect, dumped as-is to DVD and then -- to add insult to injury -- touted as "digitally restored" when it looks and sounds like crap. The Little Rascals "restored" VHS set comes to mind. I restored it for real a few years ago, converting it to DVD for personal viewing. I made it truly B&W, balanced the contrast/levels, and fixed the hissy/noisy audio.
Factory-pressed, studio made -- but still pathetic.
Sometimes you see the awful videos that get released, and you have to wonder how the people who 'signed off" on the final product got their job.
I'm reminded of this video:
"Reload page to view video."
.... but I'd have to say it's more often than just April 1.
That was an actual TV promo spot on Cartoon Network at least 5 years ago. Remember that Time Warner owns CN, along with quite a few TV channels, studios, etc.
I've spent a LOT of my hobby time repairing screwed-up releases, so that I could watch AND enjoy them. It's hard to enjoy a butchered release, I feel compelled to fix it first.
So I understand you completely.