our pbs does have its own program. news and childrens being the more frequent along with science. Im actually not sure if they are umbrella over all stuff as we also have npr which is pretty much radio. What makes us wierd is there is some national funding but local stations have to fundraise and have closed up shop do to lack of subscribers. My city also had a station associated with the community colleges but im not sure how that worked. Im pretty sure the local stations then pay a fee for the content they run from the national org so they still depend on the local charity drives. On the one had its bs that our country does not fund this stuff well enough but on the other hand I think it would keep something like this happening as folks would stop giving.