My second month with the 622 here. Really enjoying the DVR function. So my hard drive is getting full and I was in middle of watching the oldest program on the DVR. I stopped the oldest program I was watching and went to eat for 20 mins. A new recording started and the DVR deleted the partially watched program I was watching. I would have thought that since the oldest program I was watching had a resume button when I stepped away to eat that that show would not be deleted but the next show would. I guess I am learning as I go.