Zaiky K Kyoku

In Japan, there are five broadcasting stations which take the lead in the network of commercial broadcasting. The five stations are Nippon Television, Tokyo Broadcasting System, Fuji Television, TV Asahi, and TV Tokyo. Their head office are in Tokyo, and they are called Zaiky _k _kyoku. In radio broadcasting there are also key stations.The key stations make news shows and entertainment programs, and wholesale them to local broadcasting stations through the networks. Although local broadcasting stations also manufacture programs, the usage of the key stations is very large, and 55.7% of the TV program total sales in the 2002 fiscal year (April 2002 to March 2003) were sold by the key stations. Furthermore, the networks are strongly connected with newspaper publishing companies, and they influence the media very strongly. For this reason, they are often criticized.