I posted about this in another thread a while back, but when I was a kid I was the ideal age to be a teenage mutant Ninja turtle fan. I had all the merch, toys you name it at the time. I was going back through childhood shows to see if I like them enough to get them on physical media, I was stunned how awful TMNT was. Games remain fun, but the show itself has not held up well at all. I had forgotten how awful the so-called fights are. People my age you have fond memories of that show are remembering a show that never existed.
That is in contrast to two other shows I watched as a kid, Real Ghostbusters and DuckTales. I watched a couple episodes of both and they have definitely held up.