I have a 722k and all was good. I did a scan to pick up some new channels that had been added OTA. Now I am missing the guide data for one of my OTA channels and it is the normal CBS station. It was working fine until the scan. So I did a check switch and let it download that guide info to try and get it back. That didn't work. Will unplugging the box n plug it back in fix it? Any other ideas to get it back. I got stuff recording right now or I would try unplugging it. This is the only OTA channel I don't get guide info for. The rest are fine.