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New York – August 24, 2011 – Nielsen, the leading global provider of information and analytics around what consumers watch and buy, today announced the Media Rating Council (MRC) accreditation of its Puerto Rico television audience measurement service. Nielsen launched the ratings service on April 1, 2010.

MRC is a non-profit association established in 1964 to ensure valid, reliable and effective audience measurement and is composed of leading television, radio, print and Internet companies, as well as advertisers, advertising agencies and trade associations. As part of its accreditation process, MRC audits media measurement services using a rigorous series of procedures that, in this instance, included examinations of sample design, meters, monitoring and reference sources, as well as data collection and field operations procedures. The audit also reviewed ratings computations, quality control procedures, station/cable reference data, data processing operations and software quality assurance controls.

“Full accreditation of Nielsen’s Puerto Rico TV audience measurement is an exciting development and an important endorsement of the high-quality service we provide to clients,” said Victor Vazquez, Executive Director Puerto Rico, Media, Nielsen.

“The MRC applauds Nielsen for successfully completing the accreditation process for its Puerto Rico television audience measurement service,” said George W. Ivie, Executive Director and CEO of MRC. “Achieving MRC accreditation is difficult in today’s environment and indicates that Nielsen meets MRC Standards, a recognized benchmark for quality and full disclosure.”

Nielsen’s Puerto Rico TV audience measurement service builds on a foundation of the state-of-the-art Nielsen UNITAM Metering technology in a 500 home random area probability sample to provide overnight audience ratings and demographics. The service is composed of 22 clients including stations, networks, and media agencies that depend upon the performance metrics for the six geographic regions within Puerto Rico.

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ニールセン・ホールディングス・エヌ・ヴィ（NYSE: NLSN）は、マーケティングおよび消費者情報、テレビなどのメディア測定、オンライン・インテリジェンス、モバイル測定、見本市および関連資産において市場をリードするグローバルな情報・測定企業である。ニールセンは約100カ国に拠点を持ち、本社は米国ニューヨークとオランダのディーメンにある。詳細はwww.nielsen.com。