ReplayTV RTV5516 160-Hour Digital Video Recorder
My one Problem
I purchased the Replay TV 40 hour DVR almost a year ago and the only problem I've had with it is that it doesn't update every night.  So instead of unplugging and replugging it in every morning to get it to update, I attached it to a timer.  Other than that issue (which could and did get very irritating before I put it on a light timer)I've had no problems at all with this unit.  It was easy to hook up and I had no problems hooking it up again after moving.