The story
Television Yamanashi was established on 1 April 1970 as the second broadcasting station located in Yamanashi Prefecture. A new studio and head office was completed on 1 August 1984. Digital terrestrial television broadcasts started in July 2006. All analog broadcasting were discontinued on 24 July 2011.
From Wikipedia’s article on UHF Television Yamanashi, shared under CC BY-SA 4.0.4