This show seemed like the greatest thing ever when I was five (didn't see it until '92). The first seasons had choppy animation, that improved in later seasons, though by that time, I had moved on. The show was preachy, corny, and the villians, now that I think about it, were stupid. Their plans were usually
Step 1: Get rid of the Planeteers
Step 2: Pollute the world
Step 3: ???
Step 4: Profit! (Never mind that the eco-villains would suffer ill effects from their polluting ways, but hey, it's a cartoon, right?)
Anyway...that end credits song has stuck with me all these years, probably the only thing that's held up.