Sobre Inglaterra, Eua Y Mexico

HISTORY OF THE TV IN USA
Television is one of the major mass media of the United States. Ninety-nine percent of American households have at least one television and the majority of households have more than one. As a whole, the television networks of the United States are the largest and most syndicated in the world.
Television first became commercialized in the U.S. in the early 1950s,initially by RCA (through NBC, which it owned) and CBS. A number of different broadcast systems had been developed through the end of the 1930s. The National Television System Committee (NTSC) standardized on a 525-line broadcast in 1941 that would provide the basis for TV across the country through the end of the century. Television development halted with the onset of World War II, but pioneersreturned to the airwaves when that conflict ended.
After a flood of television license applications, the FCC froze the application process for new here were only a few dozen stations operating at the end of the decade, concentrated on the East and West coasts. The FCC began handing out broadcasting licenses to communities of all sizes in the early 1950s, spurring an explosion of growth in the medium. Abrief debacle over the system to use for color broadcasts occurred at this time, but was soon settled. Half of all U.S. households had TV sets by 1955, though color was a premium feature for many years (most households able to purchase TV sets could only afford black-and-white models, and few programs were broadcast in color until the mid-1960s).
TV PARENTAL GUIDELINES
TV-Y

Whether animatedor live-action, the themes and elements in this program are specifically designed for a very young audience, including children from ages 2–6. These programs are not expected to frighten younger children.
TV-Y7

Shows with this rating may or may not be appropriate for some children under the age of seven. They may contain crude or suggestive humor, mild fantasy violence, or content consideredtoo frightening to be shown to children less than seven years of age.

TV-Y7-FV

TV-Y7-FV (Formerly TV-Y7-V) is a alternate version of TV-Y7, When a show has noticeably more fantasy violence than a program rated TV-Y7, it is assigned the TV-Y7-FV rating. Action-adventure shows may carry this rating. Most Japanese anime shows dubbed and aimed at children in the United States are given thisrating.
TV-G

Although shows with this rating are not necessarily targeted to children, they can be enjoyed by a variety of age groups. Networks that air informational, religious, how-to, or otherwise generally inoffensive content (such as the Food Network and HGTV) usually apply a blanket TV-G rating to all of their shows, unless otherwise noted. Programming directed at pre-teens and teenson Nickelodeon, Disney Channel, and TeenNick are rated TV-G for mild language and innuendo. During the 20th century, most cartoons used this rating as a sign that the show contained comic violence or animated smoking that was suitable for family viewing.
TV-PG

This rating signifies that the program may be unsuitable for younger children without the guidance of a parent. Many parents may want to watchit with their younger children. Various game shows and most reality shows are rated TV-PG for their suggestive dialog, suggestive humor, and/or coarse language. Many prime-time series are given this rating, such as Everybody Loves Raymond and The Simpsons (though some recent episodes have aired with a TV-14 rating, the syndicated versions of those episodes have been rated down). Most music videoshows (such as on MTV ), some Cartoon Network series such as Regular Show or Adventure Time, and all some are rated TV-Y7-FVWWE programs (including those aired on Pay-Per-View) after 2008 are also rated TV-PG.
The TV-PG rating may be accompanied by one or more of the following sub-ratings:
* D for some suggestive dialogue
* L for infrequent coarse language
* S for some sexual...