I grew up watching this when I was still a kid, so I always wondered if when I got to middle school and high school if it would be anything like in this tv show. I was pleasantly unsurprised that it really wasn't, as I think this show really nailed the heart of pre-teen and young adolescent life better than any show before it or after it ever did. Although it was set in the 60s, I think all the major themes of life as seen through the adolescent mind still apply to the present. At its heart this was a show about nostalgia, but in a realistic rather than overglorified way. Full of memorable characters that you may swear you knew in real life and a killer soundtrack, this show was very much grounded in reality.
This is probably one of the most requested shows on dvd, and if it is ever released everyone ought to buy it. There's so many classic episodes, but with all the music copyrights with it I wouldn't be surprised if it's never released, or released without the original music(which they had better not do).