I grew up on Nickelodeon, though sometimes I regret not giving the chance to other networks that had great shows (reminds me of how being a Nintendo fan made me miss out on a bunch of other stuff). But then, you come across the occasional gem, so it might balance out. Or you just YouTube everything these days.
As I recall, Rocko was one of those shows where I didn't realize how great it was until it was off the air. And no, I don't get the Nicktoons channel.
But as compensation, I find enjoyment in how any new retro show I watch inevitably has some famous cartoon voice actor in it.