There are a couple of ways that public programming like PBS can use to try to overcome the loose rider trouble, the probably the most effective of which would simply be taxation. So if everybody has to pay a tax, whether or not they use the carrier or not, then there can be no loose riders. however, then you also run into the problem of humans deciding to buy the provider to warn, truly the use of it. So possibly some other manner to do it'd be marketing. And in case you use advertising then the folks who are receiving the blessings are also sitting there watching the classified ads and they are having to take a seat through those commercials this is enforcing, it cost upon them. And it's the money from that advertising which can pay for the general public precisely.