Villains????????

Because the producers were a bunch of cheap morons who bough a property to adapt for live action without being able to budget it so that the show would have said villains. This is why the show was a piece of crap, and why I'd love to see an animated version from the same people that brought us Batman: The Animated Series.

That always annoyed me too, especially since Dr. Sivana would've been pretty easy/inexpensive to work into the show.

Mostly, I remember him getting teens out of trouble (usually of their own making), but often he would fight bears (or maybe it was just one bear, his arch-enemy bear).

Okay let's face it, the producers just did not have enough creativity and talent to pull it off. Dr. Silvana was a mad scientist - doesn't take a whole ot of $$$ to make one of those on TV shows even for kids. However as someone had pointed out, Filmation was worried about morality and all sorts of legal hubub back in the day thus they chose to go the route of the Hulk Tv series where the villains were every day Joe & Mary Sixpacks and rarely (if ever) any villain had super powers. Not much different for Wonder Woman as well. Super powers cost $$$ via special fx. So if you make your villains ordinary people, then you don't have to spend any $$$ on that stuff.

What did Captain Marvel do a lot of? Pick cars up by the back so their wheels wouldn't go anywhere. Gee Six Million Dollar Man, Wonder Woman and everyone else who has done that schtick to death. My friends and I got sick of that odl saw real quick.