HDMI Arc vs Optical vs Coaxial. What connection is best? - YouTube
How to convert TV HDMI to HDMI(ARC) - Quora
My TV doesn't have HDMI ARC and digital optical outputs. Which is the best cable to connect to the analog input of my Sony soundbar? I only have RCA outputs in my
HDMI ARC Audio Extractor 192KHz DAC Converter ARC Audio Extractor Support Digital HDMI Audio to Analog Stereo Audio RCA L/R Coaxial SPDIF and 3.5mm Jack ARC Audio Adapter for TV: Amazon.com: Industrial
HDMI ARC and eARC: Audio Return Channel for beginners - CNET