Never seen it, but I just bought the complete original series (and the two films from the 1990s) on DVD, and since there isn't a huge amount of episodes, I imagine I'll be interested in other shows after I blow through it. The New Addams Family apparently isn't on DVD, but every episode seems to be on YouTube. Going by the episode titles, I assume they're remakes of the original episodes. That's a shame; my least favorite episodes of the 1988 Mission: Impossible were the ones that were remakes of episodes from the 1966 series.
There're also a couple of Addams Family animated shows, one from 1973 and another from 1992. I've never seen the former and have been told that it's awful, but I have vague memories of watching and enjoying the latter when I was a kid. Shame that only the former seems to be available on DVD, and neither is on YouTube.