Nielsen has announced plans for the September launch of an enhanced weighting procedure for its TV ratings estimates. It will also be consolidating all its national ratings systems into a single ‘calculation platform’ during the next two years.

The company has announced its intention to revise the algorithms it uses to weight national TV ratings, and anticipates that this will have an impact on both programme and average commercial minute audience estimates.

Meanwhile, the firm says that merging its ratings systems will enable it to modify its products and data streams much more rapidly, and make it easier to integrate audience data from the Internet, mobile phones and digital set-top devices.

The new single platform will contain pre-aggregated, quarter-hour data from products such as Galaxy Explorer, MIT files, market breaks and its published reports; along with individual minute, person-by-person data from its Npower TV ratings tool (www.mrweb.com/drno/news7132.htm ) and the average commercial minute MIT file. Nielsen says that this will help provide uniform estimates across all its products and reports.

The company is online at www.nielsen.com.

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