讀賣テレビ放送
JOAX-DTV, virtual channel 4 (UHF digital channel 25), branded as , is the flagship station of the Nippon Television Network System, owned-and-operated by the which is a subsidiary of the certified broadcasting holding company , itself a listed subdisiary of The Yomiuri Shimbun Holdings, Japan's largest media conglomerate by revenue and the second largest behind Sony; Nippon Television Holdings forms part of Yomiuri's main television broadcasting arm alongside Kansai region flagship Yomiuri Telecasting Corporation, which owns a 6.4% share in the company.