“Does anyone else experience a brief screeching sound when channels are changed or a TV input is changed? I have it hooked to the TV with the optical cable.”

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• No, I haven't.

  Answered by Andydornes 8 years ago

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• Yes mine does as well. Only when I switch inputs. I've tried different hook ups such as a Digital cable or the RCA cable it came with and it still makes that sound when I switch inputs.

  Answered by CCBykme 9 years ago

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• No, I don't have this at all, but the optical cable didn't work with my TV, I had to use the other cables.

  Answered by SJ11 9 years ago

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• That is not a typical behavior. I would recommend calling our customer support team for assistance. They can be reached at 877-878-4946 Monday thru Friday from 7am to 11pm and Saturday and Sunday from 8am to 6pm CST

  Answered by VIZIO 9 years ago

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