How do the tv channel people tell what channel is the most popular?

satguru

Having participated myself, basically they send volunteers a TV diary for a week or two, and then multiply their sample to reach the whole country's population to estimate the total figures. When you consider many election results can be judged by the first few results, it's more of an accurate way than it seems. Apr 06 05, 8:58 PM

dejavucub4

Here in the states a company I think called Nielson selects a "random" cross section of people and they are issued an electronic box that monitors the select groups viewing habits,this is used to establish the Nielson rating sysytem that in turn determines the prices charged for advertiseng,selecting time slots etc. Apr 07 05, 9:36 AM