“hooked up to spectrum cable box, every time I change channels using the cable box, TV makes a screeching sound before the channel appears.. what is this sound and how does one stop it. Is this a bug with this model TV?”

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• In order for us to better assist, please reach out to us at [email protected] with your contact information and a description of what you need assistance with. Thank you, TCL Customer Support

  Answered by TCLExpert 5 years ago

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• I would try a different HDMI cable and anither input

  Answered by GreatScottHomeTheater 5 years ago

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