What is HDMI Anyway?
High-Definition Media Interface (HDMI) delivers high-speed, uncompressed digital audio and video signals to an HD television.
How Many HDMI Inputs Do You Need?

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There are a wide variety ofHDMI cable connections!
Therefore, a direct connection is always preferred.
Either you might’t use HDMI when you oughta or must rely on an HDMI switcher.

HDMI.org
It’s doable, of course, but not the most efficient option.
Three or more HDMI inputs is really the place to start (we say more is better!)
You’ll also need one for HDMI speakers for your home entertainment center.
What HDMI Formats Should I Consider?
Your best bet for quality is to stick with at least HDMI 2.0.
The best HDMI switchers allow you to plug in up to four devices on one HDMI port.
The number of HDMI ports varies by LG TV model.