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TV Specialists, Inc. develops and licenses Stan Schubach to sell the first 2 hour (extra-long playing) video cassette tape recorder based on Panasonic’s NV-2125 3/4″ VTR. It was called the TeleProSys and the model was TPS-230. Unfortunately, VHS came out in 1977, so the Tele-Pro-Sys was short lived. However, VHS used the same technique as the Tele-Pro-Sys did to eliminate the “guard band” between the video tracks.