“why does the tv switch out of cable mode by itself after on about 20 minutes screen goes blank and and ask for a source, then i have to go and switch it back to cable mode myself please help!!!!!!”

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• This is the wrong place to ask that question. Call Samsung. Their warranty service is outstanding.

  Answered by Medrod 8 years ago

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• You might have a bad HDMI cable that's what might be causing your issue. Try replacing with a new hdmi cable see if that takes care of your problems.

  Answered by 2Bobs 8 years ago

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