[Daniel] didn’t care about extending HDMI, instead he wanted a low cost HDMI input for his PC. Capture cards are a bit expensive, so he decided to reverse engineer an IP HDMI extender.

Right now, the most popular standard for PC and TV video interfaces is HDMI 2.1, but we can soon expect a switch over to HDMI 2.2 — and that switch is apparently coming sooner than expected.

but the TV may have only one HDMI input. In this case, a three-port HDMI switch is used with three inputs for source components and one HDMI output to the TV. When multiple TVs are used ...