HDMI ARC/eARC Not Working? Let's Troubleshoot! - AV Access

With the ARC and eARC features, a single HDMI connection on the TV can be used both as the HDMI input and the audio output to the soundbar or a surround sound

HDMI ARC and CEC not working? Try these fixes

Avantree HAX04 HDR HDMI ARC Audio Extractor with Optical and Analog Audio Output Supporting lossy and Lossless Surround Sound, UHD 4K @ 60Hz, HDMI 2.0, HDCP 2.2, Pass-Through CEC with EDID

HDMI ARC/eARC Not Working? Let's Troubleshoot! - AV Access

HDMI ARC and eARC: Audio Return Channel for beginners - CNET

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