. "The Integrated Services Digital Broadcasting (ISDB) (Japanese: \u7D71\u5408\u30C7\u30B8\u30BF\u30EB\u653E\u9001\u30B5\u30FC\u30D3\u30B9, T\u014Dg\u014D dejitaru h\u014Ds\u014D s\u0101bisu) is a Japanese standard for digital television (DTV) and digital radio used by the country's radio and television networks. ISDB replaced the previously used MUSE Hi-vision analogue HDTV system. Digital Terrestrial Television Broadcasting (DTTB) services using ISDB-T started in Japan in December 2003 and in Brazil in December 2007 as a trial."@en .