I just finished setting up a custom router with dns ad blocking. Next comes a media player so I can purge this smart TV filth from my household.
Huge shout out to Louis Rossmann and the FUTO communuty contributors, check out the wiki on self-hosted software if you haven’t already.
Google TV is the easiest to get rid of ads on. I have a Sony and a Hisense both no ads.
Look up and use the Projectivy Launcher.
You’ll also want to sideload an app that forces the default launcher to Projectivy (can’t recall the name) because they don’t allow changing it through the stock OS. Projectivy tries to use accessibility settings to take over on its own, but it breaks some other features so I don’t use them.