Android TV is free of ads. There's some space in the launcher for recommendations from content apps and Play Store, but those can be customized and turned off.
Samsung doesn't use Android TV, so it's definitely 100% Samsung here.
I bought it before ad's were "included". Honestly its a great tv if ad's are disabled. (ks8000)
If the manufacturer can keep costs lower because of the ad's included then I believe I get a substantial benefit by blocking the ads at home.
IIRC it's Samsung that is pushing the ads. In my case that I observed there's some content analysis that is being done so that they push relevant "smart" ads while a classic ad is being shown. It turns out the day that I saw that ad was the same day I unplugged my TV from the network.
I know some people were asked to return their computers, but I've heard that some companies crashed so hard that the computers were just abandoned with their users.
Samsung doesn't use Android TV, so it's definitely 100% Samsung here.