It's tough to find good programming on television, So much so that I never seem to turn my television on. Of course I don't have cable but it probably isn't that big of a deal. If I did have cable I would be inclined to check this guide. ConsciousPla.net Guide To Life-Enhancing Media: Documentaries, Television and Radio
They also have an e-newsletter for monthly listings. I guess after reading this, I may actually be missing some worthwhile stuff on the tube.
posted by Cyndy