1925 March
First radio broadcastFirst radio broadcast by Tokyo Broadcasting Station
1926 August
Tokyo, Osaka and Nagoya Broadcasting Stations merge to form Nippon Hoso Kyokai (Japan Broadcasting Corporation)
1928 November
First nationwide radio broadcast
1931 April
Second radio network goes on air
1935 June
International radio broadcasts begin
1950 June
Introduction of the Broadcast Law
NHK re-established as a public broadcaster under the terms of the Broadcast Law
1953 February
First TV broadcastFirst TV broadcast from NHK’s television studios in Tokyo
1959 January
First Educational TV broadcast
1960 September
First television broadcasts in colorFirst television broadcasts in color
1963 November
First experimental transmission via communications satellite between Japan and USA breaks the news of the assassination of President John F. Kennedy
1964 October
the first Olympics in history to be broadcast via satellite and in colorThe Tokyo Olympic Games becomes the first Olympics in history to be broadcast via satellite and in color
1969 March
First FM radio broadcast
1971 October
All General TV programs broadcast in color
1977 October
All Educational TV programs broadcast in color
1982 December
Sound multiplex broadcasts begin on TV
1985 November
First teletext service begins
1989 June
Full-scale satellite broadcasting servicesFull-scale satellite broadcasting services begin
1994 November
Hi-Vision (HDTV) test broadcasts begin
1995 April
Launch of international television channel
2000 March
ITU (International Telecommunication Union) approves Hi-Vision as the international studio standard
2000 December
Digital BS broadcasting begins
2003 February
Opening of NHK Archives, a repository of Japanese TV and radio programs and video footage
2003 December
Digital terrestrial TV broadcasting begins
2006 April
One-Seg serviceOne-Seg service for mobile receivers begins
2008 December
Launch of "NHK on Demand", a pay-per-view VOD service
2009 February
NHK WORLD TV begins 24-hour English-language service
2011 April
Three BS channels consolidated into two (BS 1 and BS Premium)
2011 July
Analogue broadcasts end (With exception of Iwate, Miyagi and Fukushima prefectures, which were the areas most severely affected by the Great East Japan Earthquake)
2012 March
Analogue broadcasts end in Iwate, Miyagi and Fukushima prefectures
2013 September
Launch of "NHK Hybridcast" service, collaborative operations between broadcasting and communications
2016 August
4K and 8K test satellite broadcasting begins
2018 December
4K/8K Super Hi-Vision broadcasts begin
2020 April
Full launch of "NHK Plus" online service