Buy an AppleTV.

Google devices are out because they are developed by a advertising company.

The Roku CEO outright said they sell Roku devices below costs to advertise to you.

My TCL/Roku TV recently started showing popups during streams with services like YouTubeTV and PlutoTV, that basically say, "Click here to watch this same program on the Roku Network". I poked around the settings on the TV, and sure enough, there were some new "smart" settings added and enabled by default. I disabled the settings, and the popups stopped. But it's only a matter of time before something else appears.

Apple is already sending spam notifications for stupid bullshit like that F1 movie.