As per the OP, that live feed I linked to -
http://www.scripps.com - feeds into VLC directly or Firefox with the VLC Web Plugin.
I have been watching some of the stuff that the link streams, and it seems to be an admixture of what appears to be genuinely educational video and some religious/political propaganda - the latter presumably put out by organisations with a bias and a belief system that they want to communicate to the viewer and convert the viewer to.
So who is watching this stream?
What/who is the market?
Most of the stuff seems to be basic/simplistic and seems to be aimed either at children or people with limited comprehension/knowledge. If it
is aimed at children though, then quite a lot of it could be indoctrination.
Is that legal?
Presumably it can be pushed out in this way because it doesn't have to meet any TV broadcasting or educational standards, but if it is being digested by gullible/malleable minds, then the medium would appear to be being used to pump out deliberate propaganda and to indoctrinate people.