The FCC's new state of the media report called, Information Needs of Communities: The Changing Media Landscape in a Broadband Age, is out today and can be accessed here:
http://www.fcc.gov/info-needs-communities
The report's principal author is Steven Waldman, former editor-in-chief of Beliefnet.com, who has served since 2009 as a senior advisor to the FCC on this project.
If you don't want to download the whole 5-mb pdf, you can download smaller ones. Public broadcasting takes up all of chapter 6 and part of chapter 31.
This will take several hours to review but from a cursory look, seems worth the effort.
--Dennis