Whos Afraid of the WTO?

"Hagberg draws together some of the top thinkers in aesthetics to consider the cross-impacts between these philosophical disciplines. The selections are widely .

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Apollo 11: 'The greatest single broadcast in television history'

Shared in Network This resource is rare in the Library. Link network. Audio broadcasting began experimentally in the first decade of the 20th century. By the early s radio broadcasting became a household medium, at first on the AM band and later on FM. Satellite broadcasting was initiated in the s and moved into general industry usage in the s, with DBS Direct Broadcast Satellites emerging in the s. Originally all broadcasting was composed of analog signals using analog transmission techniques but in the s, broadcasters have switched to digital signals using digital transmission.

In general usage, broadcasting most frequently refers to the transmission of information and entertainment programming from various sources to the general public. The world's technological capacity to receive information through one-way broadcast networks more than quadrupled during the two decades from to , from exabytes of optimally compressed information, to 1.

Historically, there have been several methods used for broadcasting electronic media audio and video to the general public:. Broadcasters may rely on a combination of these business models. US public broadcasting corporate and charitable grants are generally given in consideration of underwriting spots which differ from commercial advertisements in that they are governed by specific FCC restrictions, which prohibit the advocacy of a product or a "call to action". The first regular television broadcasts started in Broadcasts can be classified as "recorded" or "live".

The former allows correcting errors, and removing superfluous or undesired material, rearranging it, applying slow-motion and repetitions, and other techniques to enhance the program. American radio-network broadcasters habitually forbade prerecorded broadcasts in the s and s requiring radio programs played for the Eastern and Central time zones to be repeated three hours later for the Pacific time zone See: Effects of time on North American broadcasting.

This restriction was dropped for special occasions, as in the case of the German dirigible airship Hindenburg disaster at Lakehurst, New Jersey , in In addition, American radio programs were recorded for playback by Armed Forces Radio radio stations around the world. A disadvantage of recording first is that the public may know the outcome of an event from another source, which may be a " spoiler ".

In addition, prerecording prevents live radio announcers from deviating from an officially approved script , as occurred with propaganda broadcasts from Germany in the s and with Radio Moscow in the s. Many events are advertised as being live, although they are often "recorded live" sometimes called " live -to- tape ". This is particularly true of performances of musical artists on radio when they visit for an in-studio concert performance. Similar situations have occurred in television production " The Cosby Show is recorded in front of a live television studio audience " and news broadcasting.

A broadcast may be distributed through several physical means.

Apollo 'The greatest single broadcast in television history' - BBC News

Programming may also come through a communications satellite , played either live or recorded for later transmission. Networks of stations may simulcast the same programming at the same time, originally via microwave link, now usually by satellite. Distribution to stations or networks may also be through physical media, such as magnetic tape , compact disc CD , DVD , and sometimes other formats. Usually these are included in another broadcast, such as when electronic news gathering ENG returns a story to the station for inclusion on a news programme.

The final leg of broadcast distribution is how the signal gets to the listener or viewer. It may come over the air as with a radio station or television station to an antenna and radio receiver , or may come through cable television [10] or cable radio or " wireless cable " via the station or directly from a network. The Internet may also bring either internet radio or streaming media television to the recipient, especially with multicasting allowing the signal and bandwidth to be shared.

The term " broadcast network " is often used to distinguish networks that broadcast an over-the-air television signals that can be received using a tuner television inside a television set with a television antenna from so-called networks that are broadcast only via cable television cablecast or satellite television that uses a dish antenna. The term " broadcast television " can refer to the television programs of such networks. The sequencing of content in a broadcast is called a schedule.

As with all technological endeavors, a number of technical terms and slang have developed. A list of these terms can be found at List of broadcasting terms. By coding signals and having a cable converter box with decoding equipment in homes , the latter also enables subscription -based channels, pay-tv and pay-per-view services. In his essay, John Durham Peters wrote that communication is a tool used for dissemination.

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Durham stated, " Dissemination is a lens—sometimes a usefully distorting one—that helps us tackle basic issues such as interaction, presence, and space and time It is possible for the message to be changed or corrupted by government officials once the main source releases it. Skip to main content. Google Tag Manager.

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