I recently bought a pretty good TV, Vizio E550i-B2, and I noticed that my regular TV shows were not as good of quality as my friends who had cable. Is Dish known to have poorer quality than cable? I really noticed it when I was watching a 1080p YouTube video and it looked so much better than anything I've ever seen while watching TV. Is it all in my head or does Dish have worse quality than normal programming?