Unfortunately, I'm finally downsizing the amount of ReplayTVs I currently have, so I'm selling off my RTV 5504. It has lifetime activation and was upgraded to a 500GB hard drive about a year and a 1/2 ago.
A factory reset has been done on the unit and it was working when I disconnected it today. The unit is in great condition minus the fact that one of the 'feet' on the bottom is missing (it was like that when I got it and I never got around to replacing it). I've never had any hard drive problems with upgraded drive.
I have the original remote but not any of the other cables or manual. I'll sell it for $225 including shipping or best offer. Just PM or reply to the thread if you're interested.