“What can I do to cure my Insignia roku TV of its maddening habit of randomly muting itself for up to (so far) 30 hours at a time.. I've had the TV for 3.5 months, and the periods of no-sound occur every day .Why? Its model # is: NS-43DR620NA18.”

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• It sounds like it needs service. Mine is only a week old, but it has not done that at all.

  Answered by Steve72901 8 years ago

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• Mine is doing the same thing. It lost sound a few times for a short period, but I blamed it on my other devices. Now it lost sound permanently.

  Answered by PurchasedAMonthAgo 7 years ago

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