Products We Remember

Possibly....
The (old) analogue transmission could still be received and viewed even when the carrier signal was weak. Digital signals are either on or off, literally, so if any part of the signal is missing, or below a preset threshold, there is nothing to see except the garbled pixelations that the TV itself has stored for the purpose of annoying you.

The way I see it is if the picture goes off then that is an improvement. The adverts will still get through though, at twice the volume of the program you would have watched if they weren't there.

Try this, switch on the TV and randomnly select a few non BBC channels. How many were showing adverts? For me it is always about 4 out of 5.
I don't watch TV live anyway, I record it and then skip the ads.
VM