High Quality Content by WIKIPEDIA articles! TV Asahi Corporation, also known as EX and Tele-Asa, is a Japanese television network headquartered in Roppongi, Minato, Tokyo, Japan. The company writes its name in lower-case letters, tv asahi, in its logo and public-image materials. The company also owns All-Nippon News Network.TV Asahi began as "Nihon Educational Television Co., Ltd." on November 1, 1957. It was established as a for-profit educational television channel, which was (and still is) quite rare in the world television industry. At the time, its broadcasting license dictates that the network is required to devote at least 50% of its airtime to educational programming, and at least 30% of its airtime to children's educational programming.