any and all incarnations of Degrassi is pure gold. It spans like, what, 20 years? That's a hell of a legacy. Whenever i bring it up in conversation with other people they're all like "oh, that's a guilty pleasure for you, right?" and i'm like "FUCK YOU. I FEEL NO GUILT"
But really, after the kids graduate high school, they should just leave the show straight up. Following them to college is always horrible (i.e. Saved by the Bell: The College Years).