After I finish this Three Stooges marathon, I think I'm gonna catch up on Hee-Haw.
TV has always been dumb. Reality TV is just a smart way to make dumb TV without having to hire dumb writers to write dumb stories. Networks like TLC and Discovery are businesses. Dumbing down makes money and is good for business. If you want intelligent TV, stick with PBS, or look at the documentary category on Netflix.