FIELD: radio electronics. SUBSTANCE: the circuit uses an additional information display signal processing unit to produce additional information display signals on screen under the control of a microcomputer, switching facility controlled by high-response blanking signal from the output of the additional information display signal processing unit for selection and generation of additional information display signals or input video signals, and an output unit of video signals for amplification of additional information display signals or input video signals arrived from the switching unit output, and for feeding amplified signals to the CRT cathode leads, as well as a blanking control unit controlled by a sync signal discriminated from video signals and by a high-response blanking signal fed from the output of the additional information display signal processing unit for formation of blanking signal applied to the video signal output unit. EFFECT: display of additional information with specified brightness and in specific position. 3 cl, 4 dwg
