Phase Alternating Line (PAL) is a color television broadcasting system used primarily in Europe and parts of Asia. It transmits color information by alternating the phase of the color signal, which helps to reduce color distortion and improve picture quality. PAL operates at a frame rate of 25 frames per second and uses a resolution of 720x576 pixels. The PAL system encodes color information in a way that allows for better compatibility with black-and-white televisions. This means that older TVs can still display a clear image, even if they do not support color. Overall, PAL has been a significant advancement in television technology.