Mencken Orwellian Telescreens receive and transmit data simultaneously.
Propaganda is disseminated while an individual's every movement is continuously recorded.
Consequently, the absence of privacy is the norm. In a future society where thoughts, actions, and behaviors are manipulated for control, such a device would be invaluable to the powerful. Of course, acceptance of such an invasive omnipotent technology would be difficult to achieve without revolution or force. Unless, it is packaged in convenience and introduced slowly over decades. I believe Interactive TV provides the next evolutionary link to our own similarly bleak future.