I see what your saying, for sure. However i've seen people list shows that were on in the 80s and 90s but first aired in the late 60s and early 70s as shows from their generation when they weren't even born yet. Like Scooby do. Certainly didn't start in the 80s, same with the Jetsons and Flintstones but i've seen tons of us list them as shows that used to be on when we were little LOL. Like I think the first Scooby Do series might have started in 69, the year my dad graduated highschool and 11 years before I was born.
I DO see your baffledness though, because your like hm, do they just mean it was on tv when they were younger or are they trying to say the show first came on at that point and they are confused. I sometimes get annoyed when people assume Degrassi The Next Generation is the only Degrassi there ever was.