These may be unrelated and just symptoms of different issues. But since we enabled parental controls, we seem to lose the remote code that controls the TV functions. This is a Samsung TV and the first code was the one that have been working for the last 4+ months. We have tried others and even when going back to the original, everything works well for a couple of hours and then it stops working. Our last resort would be to remove parental controls, but that kind of defeats the purpose.