The radio industry is made up of public service broadcasters, which are funded publicly, and commercial broadcasters, which are funded through advertising. Major developments in radio included Marconi's demonstration of wireless telegraphy in 1895, the establishment of the first commercial broadcasting station KDKA in 1920, and the formation of the first broadcasting network in 1926. The rise of television in the 1940s-50s caused radio programming to shift mostly to music and news. The video game industry follows a process beginning with game development, then publishing and distribution. Game development occurs through first, second, and third party developers, while publishers acquire rights and handle marketing and manufacturing.