Television - Wikipedia, the free encyclopedia

The elements of a simple television system are: * An image source - this may be a camera for live pick-up of images or VTR or a Film Chain-Telecine-flying spot scanner for transmission of films. * A sound source. * A transmitter, which modulates one or more television signals with both picture and sound information for transmission. * A receiver, which recovers the picture and sound signals from the television broadcast. * A display device, which turns the electrical signals into visible light. * A sound device, which turns electrical signals into sound waves to go along with the picture.