Recently - my HD Set Top Box locks where I can't change channels. It powers up shows picture of the last channel, but then I cannot change channels or bring up the menus. Remote seems fine. It happened once about a month ago, but now it has occured 5 times in a week. I solve the problem by resetting the HD box but this is getting annoying. Is this a sign that the box is going bad?
Probably.
Just to make sure, you don't have airflow blocked for box?
That can cause overheating.
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