From A for AGF Videoforschung to Z for zapping, the most important technical terms in video research are explained here.

GfK Fernsehforschung

GfK Fernsehforschung is a business division of GfK SE in Nuremberg. On behalf of AGF, GfK Fernsehforschung tracks the daily TV usage of the households in the AGF Panel and the persons who live in these households, as well as their guests, by means of electronic measurement devices.

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