Hokkaido Broadcasting Co.,Ltd(北海道放送株式会社,Hokkaido Hōsō Kabushiki-gaisha?), also known as HBC, is a Japanese broadcast network affiliated with the Japan News Network (JNN). Their headquarters are located in Hokkaidō. HBC was established on November 30, 1951. Radio broadcasts officially commenced on March 10, 1952 and TV broadcasts commenced on April 1, 1957, as the first commercial television station in Hokkaido.