Im hearing a lot more about this now. Seems the national assoc. of broadcasters is running a PSA about how congress wants to limit or remove free over the air tv from broadcasters. The goal seems to be to make alot of money by selling the frequency spectrum to wireless companys. The NAB website has more about it. To be honest I really dont see this happening, While most people do have cable or sat. Many of their second or third tv's are on antenna-not to mention all of the people that are strictly antenna and maybe cant pay for cable. As far as the primeary channel going to low def I doubt that too, all the money spent to produce high def local broadcasts is to great.