精选优质文档-倾情为你奉上Unit 1TV and audio devices: a reviewEarly history of TVThe first public showings of wireless TV transmissions were made in 1925 in the USA and in 1926 in Britain. Later, in 1928,the first long-distance TV broadcast was made between the UK and the USA. Regular public broadcasting followed shortly after, first beginning on 11May 1928 in New York and in London on 20 August 1929. Many different people contributed to the development of TV. Because of this, it is still uncerta
