> try to buy a consumer-grade TV that doesn't show ads or spy on you
I haven't bought a consumer TV since... well, actually, I just haven't ever actually bought one except second-hand non-smart TVs a decade ago. Is it literally that bad? i.e. does everything show ads? Can you root these machines and/or install non-ad-based apps instead?
Any consumer-grade "smart" product (whether TV or home automation) now phones home (even though it can run entirely locally on the LAN), requires an account and collects data and the (often mandatory) mobile app will typically include various advertising malware such as the Facebook SDK, analytics, etc that spy on you.
The primary objective is "growth and engagement" aka an ad delivery mechanism (or data collection mechanism for more ads down the line). The functionality of the product (if any) is merely a necessary evil (from the manufacturer's point of view) to convince the mark to buy & "engage" with the device. If they could get people to "engage" with it without any functionality they'd definitely do that instead.
Do what I do and simply disable internet access to the TV. Netflix and whatnot gets ran on my PS5, which mainly advertises their PSN store, so it's less intrusive.
The only good panels now are also "smart" tvs with something like a roku or samsung spyware built in in an unavoidable way. You can't simply change inputs to avoid it because the whole OS you're changing inputs within is the smart TV's OS.
You can absolutely find these, usually offered as commercial products, e.g. for menus, or billboards in airports, etc.
Buddy of mine used to work in a kabab shop before finishing his IT degree and helped out there off and on. He ordered an installed some 48" monitors (simple HD TVs) and then ordered a few for himself. I think they could 2 inputs max, but that's fine for most purposes.
Ads no longer work online, period. The ad industry is just 10 years behind acknowledging it. Most of what people pay for is just paying for the organic traffic you'd normally get with no ads so they don't give it to someone else. It's more of a protection racket than it is a source of genuine new customers.
I have rather different experience. Most people either don't care or don't know how to. Unless you're tech savvy you're watching ads. And if you're on mobile you're watching them anyway in many cases.
I haven't bought a consumer TV since... well, actually, I just haven't ever actually bought one except second-hand non-smart TVs a decade ago. Is it literally that bad? i.e. does everything show ads? Can you root these machines and/or install non-ad-based apps instead?