Abstract: This invention relates to a device for automatic channel memory which comprises a first synchronization part for tuning channels displayed on a POP frame, a second synchronization part for tuning channels displayed on a main frame, a first intermediate frequency processing part for processing intermediate frequencies of the broadcasting signals of a synchronized channel by the first synchronization part, a second intermediate frequency processing part for processing intermediate frequencies of the broadcasting signals of the synchronized channel by the second synchronization part, a microcomputer for generating control signals in response to a key signal, an OSD processing part for generating required OSD signals in response to the control signals of the microcomputer, a switching part for selecting the signals from the first and the second intermediate frequency processing parts and external signals in response to the control signal of the microcomputer, a chroma part for processing the chrominance signal of

Abstract: A method and apparatus for compensating for a position of a main picture displayed on a display screen of a display includes a sub-picture processor, a chroma processor and a display controller. The sub-picture processor receives an intermediate frequency signal of a sub-picture, and produces a sub-picture video signal of a predetermined aspect ratio from the intermediate frequency signal. The chroma processor receives a main picture video signal representing the main picture, and the sub-picture video signal. The chroma processor generates a composite video signal from the main picture video signal and the sub-picture video signal, and outputs the composite video signal to the display. The display controller controls the sub-picture processor and the display such that the main picture and the sub-picture are displayed on the display screen with a position of the main picture shifted on the display screen in a first mode of operation.