Last night we had a power outage in my area for about 3 hours.I was watching a recorded show,when power went off.When power came back I wanted to resume watching,after receiver reset,all my recordings(40 plus hours )where gone.I didn't do anything ,they were just gone and Recording space back up to full amount.What happened.Is my receiver screwed up or what.Thankfully recordings were not all that important,just annoying that it did that.