I'm going to keep adding to this as stuff happens today, but here's a good start.
Twenty years ago, I was barely four. I didn't understand the concept of a spinoff, or that there were two seperate Star Trek shows. I remember watching "The Way to Eden" before TNG one night and thinking Picard was dead because Dr. Sevrin had about the same amount of hair, so that must be the same guy.
I couldn't know, then, that TNG would be with me for the rest of my life. I was, after all, just a nerd in training, not the real thing yet.