Friend of mine swears by the Tivo option - so I would say that one (didn't know it was still available in the US - we cannot get it in the UK anymore, the hradware that is - not because they went out of business though - because Mr Murdock (Sky) bought up all the rights to take out the competition!)... For what it is worth Tivo listings etc are all fully operational despite this - there is a thriving market in second hand TIVOs with their life-time licenses! So I would go for that one - it even has a resale value!
However have to say that I am not a user myself - Lord is and he might just post here - I believe his opinion may be different.