One point many people seem to be missing is that you can make a Bob Ross (type) painting yourself. You really can. That was his point.
I have no art talent whatever, have trouble drawing stick figures. I decided to give his method a try. First painting was pretty bad, colors all scrambled and gooped together. Second was “Whoa! That looks like a mountain.” My third Bob Ross painting is still hanging on my wall. My parents, my brother and sister, and several friends also have one of my paintings displayed. And I sold a few for $100 each.
I stopped doing the paintings when he died, but the stuff is still available for anybody who wants to give it a try. It takes longer than 30 minutes (more like a few hours), but if you just do what he says step by step you do end up with a picture that looks a whole lot like the one he painted. His techniques really work.