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OzTAM is the official source of television audience measurement (TAM), covering the five city metropolitan areas and nationally for Subscription TV.
The media industry uses OzTAM data to assist in program development, advertising planning and to show how television programs and networks perform.
OzTAM television ratings information is the currency by which television is bought, sold and evaluated.
OzTAM has been measuring digital terrestrial television (DTT) – both Standard Definition (SD) and High Definition (HD) – since August 2005.
Digital Terrestrial Television
Percentage of Households Estimates (pdf, 123k) - Digital Terrestrial Television in the metropolitan areas.