I have had a 722 for a month. For the last few days we have not been able to record or watch the second sat tuner. It wil let you watch or record OTA, but if you try to navigate away from what is being recorded, it gives you the warning that it will cancel the recording and return to live tv. I know I was able to record 2 sat and 1 OTA at the same time, but now it won't. I even tried watching on TV2, but the same thing happened. Any suggestions?