SYSTEMS CONSISTING OF VIDEO WALL CUBES, OF IMAGE PROCESSING UNITS, OF DIGITAL LIGHT PROCESSING PROJECTORS INCLUDING DIGITAL TUNERS AND AUDIO AMPLIFIERS, OF SWITCHERS, AND OF RELATED CONNECTIONS FOR THE TRANSMISSION AND REPRODUCTION OF SOUND AND IMAGES, SUCH SYSTEMS BEING FOR THE REGISTRATION, TRANSMISSION, AND REPRODUCTION OF SOUND AND IMAGES; PROGRAMMABLE VIDEO TAPE RECORDERS FOR CONVERTING VIDEO SIGNALS OF NTSC (NATIONAL STANDARD COMMITTEE) TO HIGH DEFINITION SIGNALS; HARD DISC RECORDERS OF VIDEO IMAGES, FOR THE RECEPTION, REGISTRATION, AND REPRODUCTION OF SOUNDS AND IMAGES, ACCORDING TO PREDETERMINED INSTRUCTION; RADIO AND TELEVISION EQUIPMENT, NAMELY VIDEO PROJECTORS AND DATA CRT (CATHODE RAY TUBE), LCD (LIQUID CRYSTAL DISPLAY), DLP (DIGITAL LIGHT PROCESSING) PROJECTORS, BOTH PROFESSIONAL AND FOR ENTERTAINMENT; LCD AND PLASMA TELEVISION SETS; LCD, CRT AND PLASMA VIDEO MONITORS; DIGITAL RECEIVERS, ENCODERS AND DECODERS OF VIDEO SIGNALS, FORMAT CONVERTERS, UP-CONVERTERS FOR VIDEO RECEIVERS AND FOR DATA-SIGNALS RECEIVERS AND ANTENNAS FOR TERRESTRIAL, SATELLITE, CABLE, AND TELEPHONE TRANSMISSIONS; VIDEO CASSETTE RECORDERS; TELEVISION SETS; SLIDE AND MOVIE PROJECTORS, OVERHEAD SLIDE AND MOVIE PROJECTORS AND VIDEO MONITORS; ENCODERS AND DECODERS OF VIDEO SIGNALS; RECEIVERS AND ANTENNAS FOR TERRESTRIAL, SATELLITE, CABLE, AND TELEPHONE TRANSMISSIONS; VIDEO ENTRY PHONE AND VIDEO CONFERENCE EQUIPMENT, NAMELY CRT, LCD AND PLASMA VIDEO MONITORS