Essentially the TV just plays whatever data is there on that frequency band. When there is nothing on the channel, it picks up background radiation from space; cosmic gamma rays that just happened to have lengthened to the wavelengths that the TV happens to be playing on.
What caused this? Shit used to terrify me as a kid
Essentially the TV just plays whatever data is there on that frequency band. When there is nothing on the channel, it picks up background radiation from space; cosmic gamma rays that just happened to have lengthened to the wavelengths that the TV happens to be playing on.