The document proposes a new concept called "TV marathon" where a TV can only be turned on when a treadmill or other exercise equipment is actively being used. It describes connecting a TV to a treadmill or other fitness equipment so that the TV only powers on when the equipment is in use. The idea is meant to motivate people to exercise more by requiring physical activity to watch shows or sports on TV. It envisions people running longer distances on treadmills to be able to watch full TV programs or sporting events.