various eras
Although I never really stopped watching it, There have been times that I watched the show more than others.
I wathced the show a lot from 1984 untill 1991 (i'm guessing that I watched it since I was born), but although there are many segments, songs, and characters from that time period that I remember well (without the help of the internet or any research sources), i don't remember very many plots from the 1980s (there are some plots that I remember that may have been from after 1990). There are also a lot of characters from that time that I remember well, but don't remember very many specific moments with (which I might have forgotten about if it weren't for video releases, the internet, or Sesame Street Unpaved). Moments with characters like Bruno, Sherlock Hemlcok, Lefty, Simon Soundman, Biff, Sully, Barkly, Grungetta, Irvine, Forgetful Jones, Placedo Flamingo, and Fat Blue.
Then, I saw this show quite a bit from 1993-1995, and I remember more specific moments from this time period than the earlier one. After that, I watched almost every episode from season 30, and i watched the show alot during the 35th season. I have watched some of the season 36 episodes, but not many.