Radio Facts:
- oldest broadcast medium
- discovered by Marconi in 1899
- almost 90% of adults tune in on a weekly basis
Public Service Broadcaster (PSB) - broadcasting intended for public entertainment rather than to sere purely commercial interests.
They have to cater to audiences of all genders, races, religions and classes.
RAJAR - (Radio Joint Audience Research) an audience measurement system to show the
listenership for each radio show.
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