saw a few of these on the Banana Splits show back in the day. interesting concept, and it was a fun learning series, at least for basic science. I'm not sure if they ever explained just HOW the family learned how to shrink themselves. it's a cool gadget, and the car was cool as well.
they always managed to get into some trouble before the episode was over. you'd think they had some time limit on how long they could be shrinkified. this one has a lot of information about frogs. and bugs. they are kind of mean to the hawk, who is just hungry and looking for a meal.