Have you tried to power cycle your TV? Turn the TV off and unplug it for a minute or so. Re-connect it and power it back on. If this doesn't work, you can also try to do a factory reset (Settings Menu). If issues still persist, I would advise seeking repairs.
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Have you tried to power cycle your TV? Turn the TV off and unplug it for a minute or so. Re-connect it and power it back on. If this doesn't work, you can also try to do a factory reset (Settings Menu). If issues still persist, I would advise seeking repairs.