Smart TVs are everywhere these days. Most of them are based on Android and they collect a whole bunch of data from you. Some of them are even spying on you. Vizio was busted for using 11 million TVs to spy on its customers.
So what to do? You can:
1. If you already own a smart TV ( or don’t want to bother with option #2 ), consider using Pi-Hole and avoid smart TV with incorporated webcams and mics or remote with incporporated mics.
2. Take a look at KDE’s Plasma Bigscreen project.