St.GIGA (セント・ギガ Sento.GIGA) is the name of a defunct satellite radio company that was formed as a subsidiary of satellite television company WOWOW and later became semi-independent, forming a keiretsu with its parent. Using the BS network to broadcast digital radio via direct broadcast satellite as a test on 30 November 1990, St.GIGA became the world's first Satellite Digital Audio Broadcast Corporation. Regular broadcasting began 30 March 1991, and by 1 September, St.GIGA adopted the commercial-free concept proposed by producer Hiroshi Yokoi and began to charge a broadcasting subscription fee. Following a period of financial difficulties and as part of an agreement with Nintendo, from between April 1995 and June 2000, St.GIGA broadcast digitally encoded video games to owners of Super Fami