The Tivo HD box released this summer costs $300, not $800. The Tivo service fee gets as low as $8.33 a month if you prepay 3 years in advance. Here in Phoenix (Cox cable) the cable card rental is $2 (you only need one if it is a multistream card). So your monthly cost is $10.33. Cox's HD DVR costs $18.00 a month plus a $5.00 "service" fee. So if you amortize it over three years, the Tivo DVR and service costs less than the Cox DVR. And it works very well indeed.