My fire tv turn on for no reason sometimes take 2 hour after i turn off, sometime 5 minutes after i turn off, i already reset the tv and this help but after 2 or 3 weeks the problem happen again.
If you mean an actual TV set, you need to contact the TV maker for support. If you mean a Fire Stick, check the remote as maybe something is pushing the buttons. Do you have more than one in the house or the remote app installed on a smart phone you might be using?
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