10/9/2009

Nielsen has set up a meeting for next Friday with top clients -- advertisers, TV networks and ad agencies -- to determine the best way to combine the measurement of online and offline TV viewing. The meeting, Nielsen Media Client Services President Sara Erichson wrote in a letter to executives, was made necessary by the development of so-called authentication models being developed by Comcast and Time Warner Cable that would allow subscribers to view content on TV or via the Internet.

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