said by qworster:For most of this spectrum, this is not practical at all. Here's why:
The usage of this spectrum is not 'static'; instead it changes. New TV stations sign on, old ones move transmitter sites and channels, LPTV stations are always moving around, etc. Also, these channels are shared with itinerant users such as wireless microphones and medical instrumentation.
Agreed the proponents of unlicensed white spaces act like LPTV doesn't exist and this would be the death knell for many stations.