The change of aspect ratio from 1:33:1 for SD (4x3) to 1.78:1 for HD (16x9) is what annoys me for sure. Old films and short cartoons actually used a special "academy" ratio of 1.375:1.
It also does not help when, for some of these programs, the original 35mm masters were edited here and there...
Since many classic TV shows and Saturday morning cartoons were only filmed in SD (1.33:1 AR), typically from 35mm film, then I am perfectly content with them being available on at least the DVD9 or BD. Because, sometimes upsizing for BD and 4K may not be a good thing and, depending on the show...
https://www.dvd-guides.com/guides/all-to-dvd/250-put-many-movies-episodes-in-one-dvd
According to this link, the higher the bitrate used, the better the picture quality. But this also means less episodes per DVD.
Since it is common practice that most TV on DVD releases have up to four hours or...