TV addicts can now use their "addiction" to motivate them to exercise more using the EnterTRAINER. The EnterTRAINER is some kind of harness that monitors your physical activity during exercise and a transmitter that interfaces with the television. If the system detects a slowdown in your activity it will automagically turn down the volume of the TV. If it detects inactivity, it will actually turn off the television... motivating the user to keep working out.
Suggestion for the next version: Make one that forces kids to do their homework!