OzTAM

From Wikipedia, the free encyclopedia

This article or section needs sources or references that appear in reliable, third-party publications.
Primary sources and sources affiliated with the subject of the article are generally not sufficient for a Wikipedia article. Please include more appropriate citations from reliable sources, or discuss the issue on the talk page.
This article has been tagged since December 2006.

OzTAM is an Australian television ratings research firm that collects and markets television ratings data. It is jointly owned by the Seven Network, the Nine Network and Network Ten, and is the official source of television ratings data for all metropolitan television in Sydney, Melbourne, Adelaide, Brisbane and Perth as well as subscription services (such as Foxtel) on a national basis.

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.

Ratings are collected for every day of the year. Ten official survey periods, of four weeks each, cover 40 weeks of the year, excluding 2 weeks over Easter and 10 weeks over summer.