section_path: Forms of mass media/Broadcast media
section_name: Broadcast media
paragraph_text: Broadcast media
  
  The sequencing of content in a broadcast is called a schedule. With all technological endeavours a number of technical terms and slang have developed.
  
  Radio and television programs are distributed over frequency bands which are highly regulated in the United States. Such regulation includes determination of the width of the bands, range, licensing, types of receivers and transmitters used, and acceptable content.
  
  Cable television programs are often broadcast simultaneously with radio and television programs, but have a more limited audience. By coding signals and requiring a cable converter box at individual recipients' locations, cable also enables subscription -based channels and pay-per-view services.
  
  A broadcasting organisation may broadcast several programs simultaneously, through several channels (frequencies), for example BBC One and Two. On the other hand, two or more organisations may share a channel and each use it during a fixed part of the day, such as the Cartoon Network / Adult Swim. Digital radio and digital television may also transmit multiplexed programming, with several channels compressed into one ensemble.
  
  When broadcasting is done via the Internet the term webcasting is often used. In 2004, a new phenomenon occurred when a number of technologies combined to produce podcasting. Podcasting is an asynchronous broadcast/narrowcast medium. Adam Curry and his associates, the Podshow, are principal proponents of podcasting.