I have a Roku that I block from the internet. It blinks an obnoxious red led to complain it can’t phone home. I need some gaffer’s tape to cover it up I guess.
If enough people do this, I anticipate that in the next model, they'll replace that blinking light with an forced on-screen overlay.
You only get the blinking light if you take away access after having given it.
I have noticed a marked increase in youtube ads in the roku app. Prob due to roku has updated itself without permission.
Now i dread having to deal with pihole hacks + routers to fence it out of our home network :/