Connection 1 : TV equipped with an HDMI connector and compatible with the ARC (Audio Return Channel) / eARC (Enhanced Audio Return Channel) SR5015
Connection 2 : TV equipped with an HDMI connector and incompatible with the ARC (Audio Return Channel) AVR-S700W
HDMI ARC/eARC: The One-Cable TV Audio Tech Fully Explained | Digital Trends
Connection 2 : TV equipped with an HDMI connector and incompatible with the ARC (Audio Return Channel) / eARC (Enhanced Audio Return Channel) AVR-S760H
What is HDMI ARC (Audio Return Channel) and how does it work?
What is the Audio Return Channel (ARC) feature? | Sony Ireland
HDMI ARC and eARC: Audio Return Channel for beginners - CNET
HDMI Audio Return Channel | Sound & Vision
HDMI ARC and eARC: Audio Return Channel for beginners - CNET
Use HDMI ARC or eARC with your Apple TV 4K (2nd generation) - Apple Support (IE)