But wait -- there is the issue of picture quality here. My TiVo holds 30 hours, but that is at the lowest quality. I don't have cable -- everything my TiVo records comes in through the antenna on top of my house, so it is pointless to record a low quality signal in high quality mode. If picture quality is an issue with you then you must get the larger disk. Highest quality uses five times as much disk space, I think.

That is the problem I had. When I had a 20 inch tv basic looked good but after I got the 40 inch one I have to set it to medium for it to look good. I had the 20 hour one which is enough but when I had to up the quality it would only hold 8 hours so I upgraded to the series 2 60 hour.