First of all, I'd like to acknowledge that my recent interest in this type of research was born out of watching Darren's video interview with Renderman. So hat doffed, cheers guys!
I found recently that a certain type of radio in some PC TV dongles (RTL2832U) can be used to watch more than free to air TV.
I just ordered one for £7 on amazon, That's mindblowingly cheap.!
The idea is that you use these USB devices to look / listen to the radio waves being broadcast around you within a range of frequencies. It seems that within these frequencies, all the good stuff happens.
This is