I have - Stereo, TV, AppleTV, Firestick, XBox, Over The Air... all connected to my TV... and I've got it down to where I only need two remotes at a time... BUT....
It's my Harmony, (Universal Remote) and then either the AppleTV remote or the Firestick Remote.
Also... I'm still zeroing in the audio on my new Stereo so I have that remote at hand as well. Sounds complicated, doesn't it?
Well, it is... BUT... it's much better than the recent past when I'd have to be sitting with a minimum of 4 remotes.
My family HATES me, and my remotes. They want and demand ONE remote and preferably one remote with one button on it. I'm never going to figure out how to do that... so I have to learn with being despised. S'ok... if it wasn't the entertainment center they'd hate me for my computer network anyway, so there is no escape. - JamesJM