Wasn't it always [tornado fang]'d up?
I watched maybe only 3 or 4 seasons, back in the day (out of 14 seasons, still ongoing). It was just something I'd watch because it happened to be on TV, and I ended up glued to some of the episodes. Yes, I admit it. Degrassi was something of a guilty pleasure for me.
But yeah, I just didn't know the full scope of controversial subjects they've covered over the years. I was reading up on some characters and episodes, and certain events shocked me. Though honestly, I think Degrassi should just end already. They've basically covered everything.
Edit: Actually, I may have watched more than 4 seasons. Maybe 5. Still, I watched them in a disjointed order, so some things were confusing. And I believe there was a series before Degrassi: The Next Generation?