9 telecommunications signal processing, distribution and networking equipment, namely, video processing amplifiers, vertical interval processors, digital frame synchronizers and line synchronizers, video distribution amplifiers, pulse distribution amplifiers, audio distribution amplifiers; electronic audio/video/data switchers and control panels therefor, audio-video router modules, audio and video multiplexers and demultiplexers; synchronizing pulse generators, video test signal generators and controllers therefor, logo and ID generators; audio/video signal scramblers and descramblers; audio and video signal converters, encoders and decorders, serial to parallel converters and parallel to serial converters, format converters; video noise reduction modules; video and and audio compression modules; standards converters; master clocks and slave clocks, time code converters; digital apparatus for storage, file sorting and assembly, retrieval and playback of multiple field video images; computer-based digital video recording/playback units; computer programmable memory modules; electric power supplies; and remote controls for operation of aforesaid equipment, electrical cables, adapters, terminations, and parts for all the above