Live-relay optical transmission experiment of Super Hi-Vision succeeded in 2 November. It was the first experiment in the world. The transmission was between Kamogawa of Chiba prefecture and NHK Science & Technical Research Laboratories. Kamogawa is famous for Kamogawa Sea World aquarium and about 260 km away from NHK Labs.

The most important point of this experiment is long-haul optical transmission of uncompressed video and audio signals by using DWDM( Dense Wavelength Division Multiplexing ) technique.