Nielsen to use watermarks to enhance local channel rating accuracy

Nielsen Reveals Plan for Next Generation Local Audience Ratings Nielsen Local Audience Ratings Quadruple Sample Size in Metered Markets, Double Sample Size in Diary Markets; Build Foundation for Local Cross‐Platform Measurement NEW YORK - July 20, 2012 - Nielsen, a leading provider of information and insights into what consumers watch and buy, today announced a comprehensive plan for upgrading its Nielsen Local Audience Ratings, the standard used by the Local Media advertising industry.

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