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Your deviceLG M5 OLED
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What to do now

Find the ARC or eARC socket

Look at the HDMI sockets on the back of the television and find the one marked ARC or eARC.

Manufacturer UI recreationLG M5 OLED · LG webOS
LG M5 OLEDLG webOS · 14:32

Back of the TV

HDMI 1
HDMI (ARC)
Optical audio
A recreated LG webOS screen for LG M5 OLED, matched to the menu path documented by LG Support. It is not a screenshot. The highlighted control is added by UKTechExpert, and a software update may move it slightly.