Why is 'television' called TV?

Tele is Greek for 'far' which is why we have tele-phone and tele-vision. Vision because we watch it. with our VISION. Really the question should have been the other way around, as "Why is a television called a TV?" Originally, the device was called a television [as explained in the previous answer], and later someone shortened that to TV, which is an acronym using the first letter of the words Tele and Vision.j3h.