However, most TVs only feature one solitary HDMI port marked with 'ARC', so you'll need to ensure you use that port to connect devices with an HDMI cable, otherwise it won't work properly.

A standard, pre-ARC HDMI port, in contrast, only supports video and audio transmitted from a source device directly to a TV or another type of display. The biggest practical application of ARC is ...

In 2017, HDMI 2.1 introduced eARC, which added support for high-end surround sound such as Dolby Atmos and DTS:X. eARC also supports variable refresh rate (VRR), quick media switching (QMS ...