I believe that it was simply one of the "educational" bits at the end of a regular episode. See, by tacking on a "Knowing is half the battle" type thing, it becomes educational programming. This is how the networks got around some wacky restrictions on how much programming for children had to be educational. Basically, some percentage of shows had to be educational, but there was no rule about how much of the show had to be educational itself. No they slap a 30 second PSA on the end of an episode, and that's magically a full half hour of educational programming.