Patent ID: 8701135

Claim:
A computer implemented method of determining if program content was presented in a market, comprising: comparing, with a computer, a first audience signature generated based on a first time series of a varying number of viewers from a first group of viewer data derived from known presented program content, the known presented program content presented to a first market at a first time with a second audience signature generated based on a second time series of a varying number of viewers from a second group of viewer data derived from unknown program content, the first time series reflecting changes of the varying number of viewers from the first group and the second time series reflecting changes of the varying number of viewers from the second group, the unknown program content presented to a second market at a second time, the first time different from the second time, the first market different from the second market, wherein the comparison is based on a plurality of relations between a first plurality of times of change in a first pattern associated with the first time series and a second plurality of times of change in a second pattern associated with the second time series; and determining, with the computer, if the unknown program content is substantially the same as the known program content based on the comparison of the first audience signature and the second audience signature.