Main article: News program
Television news refers to disseminating current events via the medium of television. A "news bulletin" or a "newscast" are television programs lasting from seconds to hours that provide updates on world, national, regional or local news events. Television news is very image-based, showing video of many of the events that are reported. Television channels may provide news bulletins as part of a regularly scheduled news program. Less often, television shows may be interrupted or replaced by breaking news ("news flashes") to provide news updates on events of great importance.
Radio news[edit]
Radio news is the same as television news but is transmitted through the medium of the radio. It is more based on the audio aspect rather than the visual aspect. Sound bites are captured through various reporters and played back through the radio. News updates occur more often on the radio than on the television - usually about once or twice an hour.
Structure, content and style[edit]
Television[edit]
Newscasts, also known as bulletins or news programs, differ in content, tone and presentation style depending on the format of the channel on which they appear, and their timeslot. In most parts of the world, national television networks will have network bulletins featuring national and international news. The top rating shows will often be in the evening at 'prime time', but there are also often breakfast time newscasts of two to three hours in length. Rolling news channels broadcast news 24 hours a day. Many video and audio news reports presented on the internet are updated 24 hours a day. Local news may be presented by stand-alone local television stations, local stations affiliated to national networks or by local studios which 'opt-out' of national network programming at specified points. Different news programming may be aimed at different audiences, depending on age, socio-economic group or those from