People meter
Encyclopedia
A people meter is a audience measurement
Audience measurement
Audience measurement measures how many people are in an audience, usually in relation to radio listenership and television viewership, but also in relation to newspaper and magazine readership and, increasingly, web traffic on websites...

 tool used to measure the viewing habits of TV
Television
Television is a telecommunication medium for transmitting and receiving moving images that can be monochrome or colored, with accompanying sound...

 and cable
Cable television
Cable television is a system of providing television programs to consumers via radio frequency signals transmitted to televisions through coaxial cables or digital light pulses through fixed optical fibers located on the subscriber's property, much like the over-the-air method used in traditional...

 audiences.

The People Meter is a 'box', about the size of a paperback book. The box is hooked up to each television set and is accompanied by a remote control unit. Each family member in a sample household is assigned a personal 'viewing button'. It identifies each household member's age and sex. If the TV is turned on and the viewer doesn't identify themselves, the meter flashes to remind them. Additional buttons on the People Meter enable guests to participate in the sample by recording their age, sex and viewing status into the system.

The device, known as a 'frequency-based meter', was invented by a British company called Audits of Great Britain (AGB). The successor company to AGB is TNS
Taylor Nelson Sofres
Taylor Nelson Sofres is a leading market research and market information group. Formerly listed on the London Stock Exchange and a constituent of the FTSE 250 Index, the firm was acquired by WPP Group in October 2008 for 1.6 billion pounds.-History:...

, which is active in 34 countries around the globe.

Originally, these meters identified the frequency of the channels - VHF or UHF - watched on the viewer's TV set. This system became obsolete when Direct to Home (DTH) satellite dish
Satellite dish
A satellite dish is a dish-shaped type of parabolic antenna designed to receive microwaves from communications satellites, which transmit data transmissions or broadcasts, such as satellite television.-Principle of operation:...

 became popular and viewers started to get their own satellite decoders. In addition, this system doesn't measure digital broadcasts.

Before the People Meter advances, Nielsen used the diary method, which consisted of viewers physically recording the shows they watched. However, there were setbacks with the system. Lower-rated stations claimed the diary method was inaccurate and biased. They argued that because they had lower ratings, those who depended on memory for the diary method the may only remember to track their favorite shows. Stations also argued that if it wasn’t low ratings that skewed the diary method, it might also be the new variety of channels for viewers to chose from. Viewers may not be able to record everything they watch and there is no way of discovering the truth. Finally in 1986, Nielsen developed an electronic meter, People Meter, to solve the problem. The People Meter is an electronic method of television measurement that moved from active and diary-based to passive and meter-monitored. The meter also recorded real time simultaneously viewing, reducing memory bias.

Because Audits of Great Britain (AGB) had just entered the U.S. market executing similar technology, Nielsen felt the need to compete. Nielson made a substantial technological advance before network-era norms entered crisis with transition to the national People Meter sample in 1987. Although People Meters presented substantial improvements over the previous system, the alteration in audience measurement caused significant controversy. The method change costs stations whose audience had been over estimated.The end of the multi-channel transition was in large part due to the continuous changes in technology and distribution. Nielsen was at a disadvantage as their measuring techniques required burdensome adjustments. Luckily for Nielsen, the advances in advertising strategies, distribution windows, and ways people were using television made industry sectors interested in data about viewing behavior.

Along with changing their counting methods, Nielsen also started emphasizing their sample in 2003 in reaction to census shifts and requests from some industry sectors. Nielsen’s automated Local People Meter (LPM) technology was introduced in New York and Los Angeles. The LPM improved the method of measurement from active and diary-based to passive and meter-monitored. More importantly, the LPM provides accurate measurements to particular local markets, verse a nation wide sample from the People meter. While diary-based surveys concentrated on quarterly “sweeps” periods, the industry has been pushed towards year-round measurement, due to the automated LPM system.

Today there are new systems such as the portable people meter
Portable People Meter
The Portable People Meter is a system developed by Arbitron to measure how many people are listening to individual radio stations and television stations, including cable TV. The PPM is worn like a pager, and detects hidden audio tones within a station or network's audio stream, logging each...

and 'Picture Matching' measuring the viewing habits of TV audiences.
In an effort to improve the accuracy of radio ratings, Arbitron and Nielsen Media Research are testing a "portable people meter" (PPM) for radio. This new device to be clipped to an individual's clothing. Radio stations encode an inaudible, unique signal as part of their broadcasts. The PPM "hears" this signal and records the station and the time spent listening. Such a device requires far less effort on the part of respondents.
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