The invention relates to a method whereby copper is recovered from a copper sulphide ore containing pyrite. The system includes, at a head end of the CATV network a scheduling and routing computer for dividing the video program stored in long term fast storage or short term fast storage into a plurality of program segments, and a subscriber distribution node for transmitting the program segments in a redundant sequence in accordance with a scheduling algorithm. The semiconductor chip in its electrode pad is connected by bonding to the TAB tape in its inner lead. Using this architecture, it is e. When the thus-received broadcast includes an emergency broadcast receiving command, all circuits having a television receiving function are activated, to thus play back an emergency broadcast.