Regarding the failure of internal components--there are some 'failure' modes which I had not even contemplated previously.

I have a TV that's only about 5-6 years old and has a built in Roku. It mostly works fine, but the built in hardware is simply not fast enough to play some streaming services, specifically some stuff on F1TV. And before anyone asks, it's not a bandwidth problem--I have gigabit fiber and the TV is using ethernet.

Anyway, between that, general UI sluggishness and the proliferation of ads in the Roku interface, I switched to an Apple TV and haven't looked back.