I have experienced a problem where it says I have lost signal on my 722 but I change channel or press GUIDE the picture comes back INSTANTLY then it goes out again and I have to change channel or press GUIDE again to get picture back. I put it in PIP mode and the second tuner does not do it. When I press swap to swap the tuner to the main screen, it still only does it on the main screen. I had to reboot the receiver to get it to work right again.
