Television receivers having a scheme for projecting images from the back of a screen, tuners for stereos and high definition televisions, television image receivers having a set-top box, digital television receivers, television receivers with a digital video disc player, television satellite receivers, integrated circuits and cards for converting video and image data for television sets and displays, television receivers, television receivers and parts thereof, tuners for television receivers, displays for television receivers, covers for television receivers, remote controllers for television receivers, television image receiving monitors, filters for adjusting color tones on television image receivers, spatial light modulators for television image receivers, television image receivers, filters to be attached to the screens of television image receivers, retransmission amplifiers for community reception of television signals, modulators for community reception of television signals, television signal distributors (splitters), television signal distributors, television signal attenuators, television signal mixers/branching filters, cables and connectors for connecting receivers of television signals, television signal amplifiers, electrical or electronic or battery operated power supplies for television signal amplifiers, field intensity meters for television signals, splitters/distributors for television signals, television transmitter-receivers, antennas for television transmitter-receivers, television transmitters, tuners for receiving television broadcasting, television monitoring cameras, television receivers using a plasma display, television receivers using plasma display method, plasma television receivers, projection television receivers and parts thereof, projector-type television receivers, satellite television broadcast receivers, tuners for satellite television broadcast receivers, television image receivers for receiving satellite television broadcast, television receivers for satellite broadcast, television receivers with a liquid crystal display screen, liquid crystal television receivers and components thereof, monitor television receivers using liquid crystal, television receivers using liquid crystal, starters for coin-operated television image receivers, apparatus for coin-operated television image receivers, antitheft security systems for stores, comprising sound-collecting microphone, video camera, video tape recorder and television receiver, tuners for receiving digital terrestrial television broadcast, television receivers having a function to display electronic program guide on a television screen