User blog:The Testcardiologist/Hokuseiese radio and TV timeline

FM commercial radio

 * 0 - FM Kyokai (experimental, 1958-April 25, 1970)/Saikyo

Commercial television

 * 1 - Hokusei Television (HTV)/XCAX/August 28, 1953/Kanso
 * 2 - Saikyo Broadcasting System (SBS)/XCKR→XCRX/April 1, 1955/Kanso
 * 3 - Nishisaka Television (NTV)→Nishisaka Ashita Broadcasting (NAB)/XCBX→XCNR→XCAY/December 1, 1956/Kankai
 * 4 - Chubu-Hokusei Broadcasting (CBC)/XCAR→XCGX/December 1, 1956/Kyokai
 * 5 - Hokkaiji Broadcasting (HBC)/XCHR/1957/Hokkaiji
 * 6 - RKB Mainichi Broadcasting (rkb)/XCFR/April 1, 1958/Futoshioka
 * never launched/Mainichi Western TV/XCGX/→XCFO, RKB Kitakyushima relayer