“increasing image definition and improving picture edges” -- I believe "improving" would be a personal opinion. For example, I imagine the producer, director, editor, etc of a motion picture just might think that their original picture is better.

Am I the only one who thinks a television should simply display the data it receives without trying to guess what the picture represents (which ends up wasting energy (which wastes electricity, which wastes money), and results in a *worse* picture in some cases)?