although now that i look, the LG C3 has four HDMI 2.1 ports so maybe not as big a limitation as I was thinking. Click to expand... And if you're using ARC or eARC, you get only three. HDMI 2 is ...

You’ll work out which cable goes in where, and may have noticed that one of the HDMI ports is a little different to the rest. That’s an ARC port, if your TV supports ... such as Bravia Link from Sony ...