How do TV programs determine their "ratings"?

Question

Does anyone know how TV programs find out how many people have been watching their programs to determine their "ratings"?

Answer 1

they install a recorder at random house with permission
this recorder collected the information of what that household
are viewing and nos of persons watching the TV program
at midnight the recorder will seft telephone back the information
back to a computer that will accumulating the rating

Answer 2

Sorry Jayna, I think she wants to know how networks find out how many people were watching a certain program to determine if it's the #1 new show. For instance, how many millions tuned in to Grey's Anatomy season premiere, etc.

Answer 3

For programs designed solely for children
TV-Y (All Children -- This program is designed to be appropriate for all children.) Whether animated or live-action, the themes and elements in this program are specifically designed for a very young audience, including children from ages 2-6. This program is not expected to frighten younger children.

TV-Y7 (Directed to Older Children -- This program is designed for children age 7 and above.) It may be more appropriate for children who have acquired the developmental skills needed to distinguish between make-believe and reality. Themes and elements in this program may include mild fantasy or comedic violence, or may frighten children under the age of 7. Therefore, parents may wish to consider the suitability of this program for their very young children. Note: For those programs where fantasy violence may be more intense or more combative than other programs in this category, such programs will be designated TV-Y7-FV. For programs designed for the entire audience, the general categories are:

TV-G (General Audience -- Most parents would find this program suitable for all ages.) Although this rating does not signify a program designed specifically for children, most parents may let younger children watch this program unattended. It contains little or no violence, no strong language and little or no sexual dialogue or situations.

TV-PG (Parental Guidance Suggested -- This program contains material that parents may find unsuitable for younger children.) Many parents may want to watch it with their younger children. The theme itself may call for parental guidance and/or the program contains one or more of the following: moderate violence (V), some sexual situations (S), infrequent coarse language (L), or some suggestive dialogue (D).

TV-14 (Parents Strongly Cautioned -- This program contains some material that many parents would find unsuitable for children under 14 years of age.) Parents are strongly urged to exercise greater care in monitoring this program and are cautioned against letting children under the age of 14 watch unattended. This program contains one or more of the following: intense violence (V), intense sexual situations (S), strong coarse language (L), or intensely suggestive dialogue (D).

TV-MA (Mature Audience Only -- This program is specifically designed to be viewed by adults and therefore may be unsuitable for children under 17.) This program contains one or more of the following: graphic violence (V), explicit sexual activity (S), or crude indecent language (L).







[edit] Measuring ratings
Nielsen Television Ratings are gathered by one of two ways; by extensive use of surveys, where viewers of various demographics are asked to keep a written record (called a diary) of the television programming they watch throughout the day and evening, or by the use of Set Meters, which are small devices connected to every television in the selected home. These devices gather the viewing habits of the home and transmit the information nightly to Nielsen through a "Home Unit" connected to a phone line. Set Meter information allows market researchers to study television viewing habits on a minute to minute basis, seeing the exact moment viewers change channels or turn off their TV. In addition to this technology, the implementation of individual viewer reporting devices (called People meters) allow the company to separate household viewing information into various demographic groups. In 2005, Nielsen began measuring the usage of digital video recordings (TiVo, for example) and initial results indicate that time-shifted viewing will have a significant impact on television ratings.

http://en.wikipedia.org/wiki/Nielsen_Ratings

Sorry - I misunderstood the question!

Answer 4

Profanity and sexual content.