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The Optical Audio Out port on this TCL Roku TV supports Dolby Digital and DTS. Hope this helps! Thank you, TCL Customer Support
Sorry, there was a problem. Please try again later.If you go to the attached link ( for TCL Manuals ) and enter your model of TV you will find your answers, I have my set hooked in to an older Yamama 5.1 Stereo system via the Optical (TOS-link) cable, and the sound is ... AWESOME !! https://www.tclelectronics.com.au/support-centre/user-manual/
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