Playback Issues - Audio/Video & Power

Help with audio & video playback issues, TV display type recognition & compatibility, HDCP messages, troubleshooting playback errors, advertisements, and resolving power issues.
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Level 7

Optical port on tcl tv not outputting surround sound

I currently have a tcl Roku tv and a Yamaha RXV471 I got from a thrift store and factory reset/fixed some ports. I am using optical because Netflix and other apps did not utilize the ARC connection, nor did CEC detect the receiver. Netflix I believe does do surround sound, but apps like science go and tubi don’t. I don’t have access to it the settings in the * menu because I disabled the TVs speakers.

edit: I have DD enabled instead of DD+ in settings

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