Ratings Point
Ratings point is a measure of viewership of a particular television programme.
One single television ratings point (Rtg or TVR) represents 1% of viewers in the surveyed area in a given minute. As of 2004, there are an estimated 109.6 million television households in the United States. Thus, a single national household ratings point represents 1%, or 1,096,000 households for the 2004–05 season. When used for the broadcast of a program, the average rating across the duration of the show is typically given. Ratings points are often used for specific demographics rather than just households. For example a ratings point among the key 18–49 year olds demographic is equivalent to 1% of all 18–49 year olds in the country.
A Rtg/TVR is different from a share point in that it is the percentage of all possible viewers, while a share point is 1% of all viewers watching television at the time. Hence the share of a broadcast is often significantly higher than the rating, especially at times when overall TV viewing is low. A low TRP can have an adverse effect on a TV program eventually leading to its closure.
Read more about this topic: Audience Measurement
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