If there were a TV that was two miles across, each pixel would be the size of a small car. It would be powered by 2 nuclear generators. The remote would be the size of 2 semis put together (with trailors) It would take 30 minutes to start up. When it lit up, everything within a 15 mile radius would be incinerated. Anything within a 30 mile radius would be radiated with 5x the radiation of the atomic bomb. If it were destroyed it would destroy the entire east coast not including Florida or Maine, also depending where it was. If it was destroyed, it would shoot radiation upwards as high as the moon.