I know Lyion has one of these too
I haven't tried it yet, but if I can find a cheap hauppauge usb capture stick on ebay, I'm going to give it a whirl
http://www.nslu2-linux.org/wiki/DebianS ... nTVPVRUSB2
essentially, recording live tv to a slug
not that spectacular except the potential for a 0 moving part, low energy using media box