I am having some trouble following your point. It seems that you throw out anything rated R, but were not some of the films you listed rated R? And the list of good TV you made is pretty long compared to what was available a couple of decades ago.The problem with Movies these days is that alot of them are either terrible or rated R with way to much gore and sex. Back in the 80's a person could go to a decent movie at least twice a month now there are entire months that go by before a good quality movie hits the screen. Look at last year, DVD releases were awful I went almost two and a half months without seeing a new release because there was nothing worth seeing.
But that also is true for television, there were far better TV shows available to us back in the 80's than there are now. I can think of only a handful that I will watch now. Law and order, Lost, Flashpoint and a bunch of shows on Discovery, TLC and HGTV.
Perhaps you could clarify your view if you described more about what you think makes a good film and give some recent examples.
It seems to me that there have been lots of examples of fine films and television in recent years, among much more garbage, but I do not see the overall availbility of quality decrease at all in either. There is much more to choose from of all types.