Early Computer Program (Score 1)

I remember seeing on a TV program called "Revenge of the Nerds" (UK Channel 4) a few years ago, one of the first 'computers' that had no screen or keyboard. It was essentially a box with switches and lights on the front. It could be programed by flicking the switches and would respond with combinations of lights. Somebody giving a lecture on one of these thigs wrote a program (which tood a few hours to input) which when run would play the music of "Greensleeves" as interferance on an AM radio near by. -- Genius, using the timings of loops to play a song by interferance.