Agreed. Listening to movies without watching is generally enlightening. I drove Scouts in a van with a TV for the passengers, for years. I heard lots of movies without seeing them. So many are crap. The only one I remember that held up was Liar! Liar! surprisingly. Intelligent dialog; engaging and well-written.
We've been bingeing on Archer recently - that would work really well as a radio show. In fact I suspect that's how they make it, someone just does the art later.