TRP

Television Rating Points - TRP is the criterion that indicates the popularity of a channel or programme and this data is very useful for the advertisers
Presently, INTAM (Indian Television Audience Measurement) is the only electronic rating agency functioning in India. INTAM uses two methodologies for calculating TRP. First is frequency monitoring, in which 'people meters' are installed in sample homes and these electronic gadgets continuously record data about the channel watched by the family members. 'People meter' is a costly equipment, which is imported from abroad. It reads the frequencies of channels, which are later, decoded into the name of the channels and the agency prepares a national data on the basis of its sample homes readings. But there is a drawback in the technique, as cable operators frequently change the frequencies of the different channels before sending signals to the homes. It may be very misleading to read a channel according to a particular frequency even if the down linking frequency is same all over India.
Second technique is more reliable and relatively new to India. In picture matching technique people meter continuously records a small portion of the picture that is being watched on that particular television set. Along with this agency also records all the channels' data in the form of small picture portion. Data collected from the sample homes is later on matched with the main data bank to interpret the channel name. And this way national rating is produced.

Television Rating Point (TRP) is a tool provided to judge which programmes are viewed the most. This gives us an index of the choice of the people and also the popularity of a particular channel. For calculation purpose, a device is attached to the TV set in a few thousand viewers' houses for judging purpose. These numbers are treated as sample from the overall TV owners in different geographical and demographic sectors. The device is called as People's Meter. It records the time and the programme that a viewer watches on a particular day. Then, the average is taken for a 30-day period which gives the viewership status for a particular channel.

Target Rating Point is a means of determining how often an advertisement is seen by a specific target audience. Calculating TRP will not indicate an advertisement's effectiveness, but it will give an idea of the amount of exposure an advertiser is getting with its target audience.

CALCULATION OF TRP :

* Use this formula to determine TRP:
   TRP = GRP x Percentage of target audience.

* Determine the numbers. For example, an ad airs with 43 percent of viewers seeing it each of three times it       aired. The target demographic is 20 percent of the total audience.

* Find the GRP, which is rate x frequency. In the above example, the rate of viewers (43 percent) x the            number of times it is seen (three) = GRP. 43 x 3 = 129 gross rating points.

* Plug the GRP into the formula. GRP (129) x target audience percentage (20 percent) = TRP. 129 x .20 =      25.8 target rating points.

* Interpret the numbers. Generally, TRP should average between 100 and 300 per week. Extremely good        would be 400 or more, and less than 100 is ineffective. The score of 25.8 in this example shows an                ineffective ad campaign.

some intresting news about TRP:

After taking the Bollywood box office by storm, Aamir Khan-starrer 3 Idiots brought record television viewer ratings (TVRs) for Sony Entertainment channel when telecast last month.

The film, aired July 25, got 10.9 TVRs, catapulting the channel to the third position of Hindi general entertainment channels in India with 270 gross rating points, a statement from the channel said.

Mihir enters in Anupam n Tulsi's wedding-Highest TRP raking scene ever in Indian Television History.