I would go for an Apple TV box if you’re in the Apple ecosystem at all. If you’re anti-Apple I’d look for something similar from Android. Just stay away from the streaming sticks, my friends that have them always seem to have issues with the sticks having sluggish performance or straight up freezing up (Firesticks seem especially bad).
A PC can also come in handy though. I built one in a portable Mini-ITX case that’s easy to move to the living room if I want. Nice for when you want to go to streaming sites that may not have apps yet, can also play games off Steam or the Epic Store, etc.
I’d wonder if there’s a weird issue where sound is traveling through a duct or something.