In TV transmission, a picture is converted into an electrical signal through a process called scanning, where a camera captures the image and breaks it down into pixels. These pixels are then encoded into a signal that can be modulated and transmitted over the airwaves or via cable. At the receiving end, the signal is demodulated and decoded, reconstructing the original picture for display on a television screen. This process occurs rapidly, typically at rates of 30 frames per second or higher, to create smooth motion.
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