The audio-visual world loves an acronym, so if you've heard about HDMI ARC or eARC and have been left scratching your head as to what these mean, then worry no more as we explain through these ...

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 ...