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. This innovation will provide an enormously focused channel for propaganda, control guised as advertising and convenience, and ultimately a basic structure for worldwide domination through the eventual incorporation of close circuit technologies coupled with face recognition and behavior modification software.
Interactive TV is the marriage between television, communications, and computing.
It is a convergence of high-speed networks, digital devices, the digital signal, software and compression technologies, and data broadcasting systems. If you can image it and worse, if you think it, it will eventually appear on your screen. The goal is more and more convenient interaction between you and your TV screen. For example, while watching a commercial for a Pizza restaurant, a part of the screen can be activated, sending a fresh hot pizza to your door and debiting your account. All without taking your eyes off the screen.