“Will the TV pass Dolby Digital audio to my receiver either by optical or ARC ? my receiver doesn't support 4K so I want to hook my FireTV4k directly to the tv but still get surround from my receiver. my current tv will only pass 2ch pcm over optical.”

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• This TCL Roku TV has the ability to pass through Dolby Digital through both Optical and ARC. If your receiver supports Dolby Digital you should be all set to go! Thank you, TCL Customer Support

  Answered by TCLExpert 6 years ago

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• I’m getting great pass-through sound from the ARC hdmi port.

  Answered by GMK911 6 years ago

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• I am unsure if the set will pass the Dolby Digital audio, but it does support ARC through 1 HDMI port (HDMI 3).

  Answered by CDundee 6 years ago

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