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The broadcast signal can be either analog (signal is varied continuously with respect to the information) or digital (information is encoded as a set of discrete values). [16] [17] Historically, there have been several methods used for broadcasting electronic media audio and video to the general public:
U.S. Agency for Global Media [8] [disputed (for: conflict between sources - also listed on list of state media by country) – discuss] Voice of America (1942) [62] Radio Free Europe/Radio Liberty (RFE/RL) Current Time TV; Radio Free Asia (RFA) Middle East Broadcasting Networks. Alhurra; Radio Sawa; Office of Cuba Broadcasting (Radio y ...
Educational and other non-commercial broadcast networks – which air English- and some foreign-language television programming, intended to be educational in nature or otherwise of a sort not found on commercial television (for example, PBS); Religious broadcast networks – which air religious study and other faith-based programs, and in some ...
Convergence is the sharing and cross-promoting of content from a variety of media, all of which, in theory, converge and become one medium. In broadcast news, the internet is a key to convergence. Frequently, broadcast journalists also write text stories for the Web, usually accompanied by the graphics and sound of the original story.
For example, the Internet includes blogs, podcasts, web sites and various other technologies built atop the general distribution network. The sixth and seventh media, Internet and mobile phones, are often referred to collectively as digital media; and the fourth and fifth, radio and TV, as broadcast media.
News broadcasting is the medium of broadcasting various news events and other information via television, radio, or the internet in the field of broadcast journalism. The content is usually either produced locally in a radio studio or television studio newsroom , or by a broadcast network .
Public broadcasting (or public service broadcasting) involves radio, television, and other electronic media outlets whose primary mission is public service.Public broadcasters receive funding from diverse sources including license fees, individual contributions, public financing, and commercial financing, and claim to avoid both political interference and commercial influence.
A terrestrial network (or broadcast network in the United States) is a group of radio stations, television stations, or other electronic media outlets, that form an agreement to air, or broadcast, content from a centralized source. [1]