Abstract
In this report, we probed quantitative regional differences of the nationwide broadcasting program provided by the local commercial television stations. Japanese commercial television stations are building five news networks. But, there are some prefectures that don't have all television station of five news networks. The old Ministry of Posts and Telecommunications made a plan to establish new local commercial television stations to correct regional differences in the broadcasting. By that plan, new commercial television stations were opened in many prefectures in the 1990's. As that result, we confirmed that quantitative regional differences had been corrected in many prefectures. But, there are some prefectures which still have regional differences in the broadcasting.
