You make an excellent point. With the advent of HD radio, every signal can potentially become 4 or 5 "channels" of news, music, etc. The argument for additional signals to "be competitive" is out the window.
Remeber....the argument corperate media made to Congress was that the pie slices had become too thin....they weren't making enough profit and the quality of the "product" was suffering. If only.....there was a way for them to make MORE profit.....then the quality of American media would skyrocket.
Just think.....no more mom and pop broadcast companies with their harelipped announcers and hobbled together technical plants. It would ALL be "corperate!" Great programming, great announcers, great facilities.....the best money could buy! That was the choice presented to Congress.....harelipps or pros.
We see, in retrospect, that the problem was incompetence at the corperate level, not too much competition. The large companies STLL have the same problems today....slices of the pie are still too small. But it is glaringly apparent that this is due to a complete lack of understanding of business fundamentals by the licensee, the corperate owners!
So....let them have a single channel and split it up however they wish. And let the bloodbath begin for splitting up the other properties. (I'm sure I would be here spewing complaints about that process too!)