The problem with RCA cables wasn’t the colors, it was the fact that the back of the tv was huge and you really wanted to not have to get back there. HDMI you can install by feel

You can? I can’t. They have to be perfectly aligned, and I can’t get HDMI or DP cables to connect without visually seeing the outlet and plug.

You have a chance to install by feel though. RCA you have to see the colors.

Ok this is true, although if I had to reconnect a device pretty often, I’d be able to feel out the location of the plugs. But otherwise, yes.