3-2-1 Contact, on PBS
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I only vaguely recall the show, but it does have nostalgic value to me. There were a few different sets of hosts over the years. I'm sure it was quite important to me, when I was a kid. Anyway, it was a good way to teach kids about science and then reward them with a little Bloodhound Gang mystery. I don't really know what else to say, but I'd probably enjoy watching old episodes someday, but I very much doubt that'll ever happen.

kid stuff
kid stuff nostalgia