Viewers who caught the January 27, 1983 episode of BBC’s Tomorrow’s World saw presenter Peter Macann lay out real hardware that tried to solve an old complaint. Television sets of the day sat deep and heavy because their cathode ray tubes needed space for an electron gun to fire straight at the screen. Macann began with a plain observation: a set flat enough to hang on the wall like a picture would free up room and change how living spaces worked. The demonstration that followed showed both how close engineers had come and how many practical hurdles still stood in the way.