My Grandfather used to shout at the television when it foolishly displayed stuff he disagreed with.
Today’s invention is broadcast devices, ie TVs and radios, which can take such feedback seriously.
At its simplest, a radio might have a microphone system capable of recognising a small selection of keywords spoken by a listener eg “Nonsense!” These would be transmitted back to the station to provide detailed, realtime feedback about programme content.
Generate enough cries of “Next!” and the programme would step forward to a subsequent item.
