What is TRP? / Television Rating Point.

Television Rating Point 

A Television Rating Point (TRP) is a measure of the purchased television rating points representing an estimate of the component of the target audience within the gross audience. Similar to GRP (short for Gross Rating Point) it is measured as the sum of ratings achieved by a specific media vehicle of the target audience reached by an advertisement. For example, if an advertisement appears more than once, reaching the entire gross audience, the TRP figure represents the sum of each individual GRP multiplied by the estimated target audience in the gross audience.

In the case of a TV advertisement that is aired 5 times reaching 50% of the gross audience with only 60% in the target audience, it would have 250 GRPs (= 5 x 50) -- ie, GRPs = reach x frequency - TRP in is this case should be 60% out of 250 GRPs = 150 TRPs - this is the rating point in the target, 60% of the gross rating.

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