Television OSAKA introdused the Audio and Video Bank system adopting "level 5" RAID on renewal of Master control system. This system can memorize 12000 frames of picture with key signal and 10 hours of stereo sound. It can automatically arrange logotypes of companies taken to this system and can make still pictures expressing companies sponsoring TV program. This system has 2 lines of input and 6 lines of output because it is aiming to cope with multichannel broadcasting.