Hmmmm, I've got 2 Android TVs, and neither has ads, like the crap on my phone apps.
They have other annoyances, like insufficient RAM/non-volatile storage and slow CPUS, but I haven't seen any ads, unless you mean the scrolling suggestions for the on-board bloatware like Youtube, Tubi, Netflix, Pluto, Paramount+, and so on?
They have other annoyances, like insufficient RAM/non-volatile storage and slow CPUS, but I haven't seen any ads, unless you mean the scrolling suggestions for the on-board bloatware like Youtube, Tubi, Netflix, Pluto, Paramount+, and so on?