what size hard drives would we be talking about for this purpose? i read somewhere that HDTV uses 19mb per second of bandwidth...i don't know if that translates directly to storage requirements, but if it's anywhere near that it looks like we would need about 1gb/minute. if that's the case we'd need a 180gb drive just to be able to record 3 hours. is that about right? and i guess they would still have to work out copyright issues. are we still years away?