Wired or Wireless audio-video-control extenders for extending audio and video and control signals; fiber optic audio-video-control extenders for extending audio and video and control signals over fiber optic cable, namely, fiber optic senders, fiber optic receivers, fiber optic cables and fiber optic connectors; distribution amplifiers for audio-video-control signals; audio-video-control signal splitters; electronic switchers for audio-video-control signals; matrix switchers for audio-video-control signals; electronic scalers for audio and video signals; integrated circuits incorporating algorithms for use in processing television signals; digital signal processors; remote controls for audio and video scalers and high definition media interface switchers; loudspeakers; software and firmware for operation of audio, video, digital and analog and control sources devices; electronic interconnecters for audio-video-control signals; audio-video-control analyzers; audio-video-control processors; transmitters and receivers for audio-video-control signals for transmission over twisted pair cables; audio visual extender units that transmit audio-video-control over power lines; transmitter and receiver units for audio-video-control extension, and local area networking over power lines; audio-video-control transmitters; audio-video-control conversion boxes; cables for electrical or optical signal transmission; connection cables for high definition multimedia interface Displayport, DVI, VGA, component video, S-Video and composite video; audio visual wireless extenders, filters, adapters, cables, controllers, repeaters, and switches; signal generators for testing and calibration of digital video equipment; digital video recorders; high definition multimedia interface extenders and repeaters; IR remote controls for audio-video-control scalers and high definition multimedia interface switchers; converters; portable and wall-mounted high definition multimedia interface splitters, extenders, switchers and matrix units all for audio-video-control routing and distribution; flat-form factor correction units with face-mount high definition multimedia interface ports for audio-video-control routing and distribution; copper and fiber-optic cables and plug adaptors; infrared remote controls for audio-video-control, front panel switchers for audio and video