This puzzles me. It seems public radio/noncommercial deals with how stations are organized and financed, not their content. Among stations which meet CPB's definition of public radio and qualify for funds there stations which are: News/talk (arguably the most prominent format), Jazz, Adult Alternative, Folk and the so-called "tent pole format" (usually news/talk in AM and PM drive, classical during midday and jazz at night). Other noncommercial (but not public) formats include religion and variety.
It seems that financial aspects unique to public or noncommercial radio are distinct but discussion of content issues (format) for public stations belong with the commercial stations with which they compete (the news oriented listener decides whether to listen to commercial all news radio or All Things Considered on the drive home from work).
It seems that financial aspects unique to public or noncommercial radio are distinct but discussion of content issues (format) for public stations belong with the commercial stations with which they compete (the news oriented listener decides whether to listen to commercial all news radio or All Things Considered on the drive home from work).