HDMI In Explained
HDMI InAlmost all consoles, Blu-ray players and DVD players run off HDMI (High-Definition Multimedia Interface) these days, as do most TVs. An HDMI cable has a flat connector with a very distinctive shape, and the chances are that if you’ve bought a TV made in the last ten years, you probably know what it looks like. These ports are where you will connect your players (consoles, DVD etc.), running an HDMI cable from their HDMI outs to the inputs on the receiver.
You don’t, by the way, have to pay too much attention to the labelling on each of the ports. Feel free to plug your Xbox into the one labelled CD, or whatever. All HDMI inputs are created equal.