We know that sound can be heard along with watching pictures on television. A transmitter station is needed to send sound and pictures to the television. Television transmitters have separate transmitters for transmitting sound and pictures. The image is converted to an electrical signal by a transmitter. Another transmitter converts the image into an electrical signal, which is then sent as an electromagnetic wave. Sending and receiving images is a reflection of the scene that needs to be transmitted or broadcast or the image is projected onto the screen of the television camera through the lens. Television cameras convert this image into electrical signals. These waves or signals are mixed with high frequency carrier waves in the modulation process. Later, with the help of antenna, it is sent as electromagnetic radio wave. With the help of antenna, the TV set receives the electromagnetic carrier wave transmitted for the image. This electrical signal is amplified by a magnifier and transmitted to the electron gun. An electron gun is attached to the back end of the picture tube. After receiving the video signal, the electron gun emits a beam or current as thin as a needle. When the electron beam falls from the electron song in the fluorescent phosphor of the TV screen , it produces bright and dim light flashes. The combination of these bright and dim light points is the image sent from the camera that appears on the TV screen. This is the way black and white television works.