I've been reevaluating basically every show I watch as a kid to see what's worth getting on Blu-ray or DVD and that would hold up to me now as an adult.
I have to say one of the bigger disappointments is actually the original teenage mutant Ninja turtles. It is just way too Kiddie and tame, I feel like I have false memories of it, or maybe it was just the idea of it and the hype and being the right age to be a fan of it at the time. The 2003 series is way better and is sort of the series that we would have wanted at the time but didn't get. I'm not saying it's a horrible show the 1980s one, but it really hasn't lived up to the hype for me and I won't be getting it on disc.
Another one that did not hold up for me was M.A.S.K. it has awesome music, but the story is just too stupid even for a kid. Bad guys being bad guys with no real reason for it kids are smarter than this and they deserve something with a little thought in it.
Two others that have held up just as a white pill to this thread are the real Ghostbusters and DuckTales, but especially real Ghostbusters. When I was going through them watching a few I ended up watching the whole first season in a night just because it was such a well-aged show, despite being made for 7 year olds. It was a favorite of mine when it originally aired so this is good that it's held up.