An interesting project out of the UK:
Promise.tv. It has the ability to record all Freeview (British TV) streams including TV and radio (about 60 channels total) in a one-week buffer, allowing you to watch anything broadcast in the past seven days. No more season passes, no more suggested recordings, instead you get the ability to see anything at all on any channel recorded.
It's pretty crazy that this kind of heavy multistream recording is possible now in a single small box.
(via BoingBoing, who is offering a 50% off price when ordering direct)