How to Scan ISDB-T Channels What is ISDB-T? Integrated Services Digital Broadcasting- Terrestrial (ISDB-T) integrates multiple forms of digital content that may include HDTV, standard definition television (SDTV), sound, graphics, and text, and will be applied to DTT, digital sound broadcasting (DSB), or multimedia services. ISDB-T is often a Japanese invention which is a part of ISDB standards maintained through the Japanese organization called ARIB (Association of Radio Industries and Businesses). It competes with DVB-T, put together by European companies. Another competitor is ATSC, as a famous invention. ISDB-T could be the least widespread Digital Terrestrial Television standard. Only two countries – Brazil and Japan – have adopted it. Nevertheless the quantity of receivers that can get produced will be large because of selection in Brazil.