OzTAM is an Australian audience measurement research firm that collects and markets television ratings data. It is jointly owned by the

Seven Network The Seven Network (commonly known as Channel Seven or simply Seven) is a major Australian commercial free-to-air Television broadcasting in Australia, television network. It is owned by Seven West Media, Seven West Media Limited, and is one of ...

, the Nine Network and Network Ten, and is the official source of television ratings data for all metropolitan television in

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Melbourne Melbourne ( ; Boonwurrung/ Woiwurrung: ''Narrm'' or ''Naarm'') is the capital and most populous city of the Australian state of Victoria, and the second-most populous city in both Australia and Oceania. Its name generally refers to a metro ...

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Adelaide Adelaide ( ) is the capital city of South Australia, the state's largest city and the fifth-most populous city in Australia. "Adelaide" may refer to either Greater Adelaide (including the Adelaide Hills) or the Adelaide city centre. The dem ...

and

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as well as subscription services (such as Foxtel) on a national basis. OzTAM was created in 1999 after the Seven and Ten Networks led a call for a re-tendering of the contract to provide audience ratings. Executives from both networks were concerned that the previous ratings service did not accurately reflect viewing levels for their channels. Prior to OzTAM, the dominant metropolitan ratings company was Nielsen Media Research. The two companies competed for a short time, before Nielsen pulled out. Nielsen continues to be active in some regional areas. There are ten official survey periods, of four weeks each, covering 40 weeks of the year, excluding 2 weeks over

Easter Easter,Traditional names for the feast in English are "Easter Day", as in the '' Book of Common Prayer''; "Easter Sunday", used by James Ussher''The Whole Works of the Most Rev. James Ussher, Volume 4'') and Samuel Pepys''The Diary of Samue ...

and 10 weeks over summer. In total, OzTAM measures ratings from 3,500 homes, with 950 homes in

, 900 in

, 650 in

and 500 each in

and

, with these ratings commonly referred to as 'five city metro ratings'. A further 2,000 homes outside these five cities are measured by Regional TAM, and an additional 1,200 homes monitor viewing of subscription television in Australia. Nielsen are contracted to provide the audience measurement services to both OzTAM and Regional TAM having previously operated their own measurement service. The Nine Network, traditionally the ratings leader in Australia for many years, carried over its dominance into the OzTam era, winning six consecutive ratings seasons between 2001 and 2006 inclusive. Between 2007 and 2018 inclusive, it dropped to second position behind the

, before again reclaiming the mantle as the most-watched television network in Australia in 2019. In 2017, the metropolitan homes measured will increase to 5,250, Regional TAM homes will increase to over 3,000 and subscription viewing homes to 2,120. Additionally, OzTAM's renewed its contract with Nielsen as a sub-contractor through until 2020.

References

External links

OzTAM Homepage
Australian television ratings Audience measurement Market research companies of Australia {{Australia-tv-stub

See also

References

External links