WATCH LIVE TV AT HOME

Watch Live TV HISTORY

IN THE WORLD



Watch Live TV was born from the conjunction of a number of phenomenas and research developed simultaneously but separately. The original discovery of the "phototelegraphy" in the mid nineteenth century (The word Watch Live TV would not be used until 1900), owes its progress and development to several researchers who experimented with image transmission via electromagnetic waves.

Of all those who contributed their studies of phototelegraphy, undoubtedly the most important is the German engineer Paul Nipkow, who in 1884 patented his light scanning disk, better known as Nipkow disc, John Logie Baird, Scotland who in 1923 developed and improved the Nipkow disk-based selenium cells, And Jenkins IVES Americans, who were based on Nipkow´s technology, and Russian immigrant to the U.S., VLADIMIR SWORYKIN, manager iconoscope tube.



The first experimental transmissions were born to life in USA It was in July of 1928, from the experimental station W3XK Washington, Jenkins began broadcasting mainly scanned images of films with some regularity and with a definition of 48 lines.

In 1929, the BBC (British Broadcast Co.) of London expressed some interest in investigating after Logie Baird in 1928 had been able to transmit images from London to New York, and also Watch Live TV  shown in color, the bright daylight Watch Live TV, stereo and TV, this of course was very primitive.

However, in 1929, the BBC sent a regular transmission of images with some reluctance, because he saw in the new invention some practical use. Nevertheless, official broadcasts began on September 30, 1929.



The definition of the signal was 30 lines using a normal channel broadcasting. The entire channel was occupied by the video signal, so the first simultaneous transmission of audio and video did not take place until December 31, 1930. Towards the end of 1932, it had already sold more than 10,000 products.



This television was of a mechanical order. The real revolution will not come until the beginning of Watch Live TV electronics, initiated Sworykin experiments. This joined the Westinghouse and began his research in the early 20s, using a cathode ray tube for the receiver and a mechanical scanning system for transmission.



His discovery was named PIPE iconoscope, and his first patent dates back to 1923. By the late '40s, the electronic Watch Live TV Sworykin had completely displaced mechanics.



In that year began the war for color Watch Live TV. Even before this, Sworykin had suggested the idea of ​​standardizing TV systems that were being developed parallel in the world. With this concern in early 1940, the U.S. created the National Television System Committee (NTSC) which regulated the manufacturing standards of Watch Live TV sets are compatible between different American companies engaged in manufacturing. Thus, in July 1941 the system was standardized, valid for all states of USA, of 325 lines.

After the war, the Watch Live TV industry took a new impetus. Europe adopted a system of 625 lines, while France had one of 819. England kept theirs from 405 and U.S.A. standardized its system of 525 lines.



The various studies conducted to develop the color TV, again jeopardized the public support required of the apparatus. The economic interests of big companies lobbied hard for the adoption of a color system. It is not compatible with all devices. Although it was the large number of televisions sold in that time (about 10 million), that motivated the agreement to develop a fully compatible color Watch Live TV.



Another problem raised was the double forward and reverse compatibility, ie a signal color viewed on- Watch Live TV  B / W and a signal B / W  Watch Live TV  is seen in a colour. In the end, the support system was achieved by adopting in 1953 the name of the regulatory committee, known as NTSC.



But, this development also reached the European countries who did not want to compromise their national pride. France simply did not want to standardize their system to the U.S. and make their own color Watch Live TV system: SECAM (Couleur A Memorie Sequentiel), developed in 1967 with a resolution of 625 lines. Germany does the same and in the same year '67 created the PAL (Phase Alternation Line), also of 625 lines developed by the company Telefunken. According to the views of engineers, this is the best of the three.









TELEVISION HISTORY

IN MEXICO



The first steps of television in Mexico, in the experimental stage, dating back to 1934. A 17-year-old student of the National Polytechnic Institute, is experimenting with a system of closed circuit television in a small laboratory set up at the premises of the radio station XEFO. For several years, the engineer Guillermo González Camarena worked with the team he had built, until, in 1939, when the black and white television worked in some countries, González Camarena impacted the world by inventing color Watch Live TV, Trichromatic System through its Field Sequential.





The engineer Guillermo Gonzalez Camarena obtained a patent for his invention both in Mexico and the United States on August 19, 1940. This color television system began to be used for scientific purposes. In 1951, broadcasts from the National School of Medicine, anatomy lessons. Currently, the best example of the practical use of the creation of the Mexican engineer, It was used in the U.S. spacecraft of the National Agency for the Study of Outer Space (NASA), which was equipped with trichromatic system.





The first black and white transmission in Mexico, takes place on August 19, 1946, from the bathroom of the house number 74 on the streets of Havre in the capital, place of residence of the engineer Guillermo González Camarena . It was so successful, that on 7 September that year, at 20:30, officially opens the first experimental television station in Latin America, the XEIGC. This station broadcasted on Saturdays for two years, artistic programs and interviews. In September 1948, began daily broadcasts from the Palace of Mining of the "First Exhibition Presidential Objective." Thousands of people were witness to this thanks to receivers installed in shopping centers. This is why the engineer González Camarena is known as the "Father of Mexican television."





The first commercial Watch Live TV channel in Mexico and Latin America was inaugurated on August 31, 1950, a day later, on September 1, the first program transmitted was the reading of the fourth report of the government of president of Mexico. German Mr. Miguel Valdes, created the signal of the XHDF-TV Channel 4, O'Farrill family. In that year, the XETV-Channel 6, Tijuana, Baja California and XEQ-TV Channel 9 (XHTM Channel 10), Altzomoni, State of Mexico, also start their transmissions.

XEW- Watch Live TV Channel 2, owned by the Azcarraga family, was inaugurated in 1951, which broadcasts from Delta Park (now Social Security) in the Federal District. That year, Channel 5 XHGC engineer Guillermo González Camarena, is integrated into the television dial. By 1955, these three channels are merged, leading to the Mexican Telesistema company. Then, initiate transmissions XEIPN Channel 11 (1959), National Polytechnic Institute, XHTIM Channel 8 (1968) of the Monterrey Group, (now XEQ-TV Channel 9 integrated consortium Televisa) and XHDF- Watch Live TV , Channel 13 (1968).

It is precisely in 1968 when our country ventures into the era of satellite communications to broadcast across the world the various events of the Olympics Mexico 68. 17 years later in 1985, They placed in orbit the first two national satellite communications, Morelos I and II. In 1992 and 1993 they placed two more satellites, Solidaridad I and II, with them, using the latest technology in radio and television programs they had the ability to provide telecommunications services throughout the country and 23 countries of the continent of Americas.


Guillermo Gonzalez Camarena. Born in 1917 in Guadalajara, Jalisco. He dedicated his life to researching electronics and painting. In 1939 he patented the first color television system. He was the first Mexican television programs. On May 10, 1952 the Channel 5 opened. On April 18, 1965 González Camarena was killed in a car accident.



The first public television broadcasts of the BBC was in England in 1927 and the CBS and NBC in the U.S. in 1930. Both studies used mechanical systems and programs are not issued on a regular schedule. The emissions program started in England in 1936, and United States on April 30, 1939, coinciding with the inauguration of the Universal Exhibition in New York. Scheduled broadcasts were interrupted during World War II and resumed when it ended.



In Spain, Spanish Television was founded (TVE), now included in the Public Entity Radiotelevisón Spanish in 1952. According to the Ministry of Information and Tourism, After a test period began regular broadcasts in 1956, untill October 28,1960 there was no connection with Eurovision. Television in Spain had been a state monopoly until 1988. By constitutional mandate, the media is dependent on the state governed by a statute that sets the management of public service radio and television to an autonomous entity which should guarantee the plurality of significant social and political groups.



Since the 1970s, with the advent of color television. TVs experienced tremendous growth that produced changes in the consumption of leisure of the Spanish.



As the television audience was increased by millions, there were other sectors of the entertainment industry suffered drastic cuts in sponsorship. The film industry began its decline with the closure of many locals.



In Mexico they had performed experiments on television from 1934, but the commissioning of the first Watch Live TV station, Channel 5 in Mexico City, took place in 1946. At the start of the 1950 commercial television was introduced and began regular programs and in 1955 Telesistema Mexico was created, by the merger of three existing channels.







Televisa, the largest Spanish-speaking commercial broadcaster, was founded in 1973 and has become one of the emitting centers and the world's largest business in the field of communication, as well as channels and television programs, they developed extensive activities in radio, press and publishing or sporting events.



Television has reached a major expansion throughout the Latin American continent. There are currently more than 300 television channels,the number of television sets is (60 million), over two hundred million people.



In 1984, Televisa's use of satellite for PanAmSat global broadcasting, allows the Spanish signal to cover all five continents. Hispasat, the Spanish satellite of the 1990, covers all of Europe and America.



In 1983, Spain began issuing private television TELE 5, Antena 3 and Canal +. In 1986 there were 3.8 people per television set, which has now fallen to 3.1. In the late eighties, there were some 1,360 U.S.  Watch Live TV stations, including 305 educational, and over 98% of households in that country had a level similar to Spanish Watch Live TV. More than 8,500 systems are offering cable service, with a portfolio of over 50 million subscribers. Currently around the world, television is the most popular national pastime, 91% of Spanish households have a color television and 42%, a video recording equipment. Spanish citizens spend, on average, about 3.5 hours per day watching television, with an audience of three spectators per unit.



During the years immediately following World War II different experiments with different television systems were performed in some European countries, including France and Holland, but it was the USSR, which began regular broadcasts in Moscow in 1948, the first country in the continent to operate the public service. About 98% of households in the USSR (3.2 persons per recipient) and France (2.5) has TV, and 94% in Italy (3.9) and 93 households in Germany now part of the reunified Federal Republic of Germany (2.7).

Television in space



Television cameras aboard the U.S. spacecraft transmitted to Earth space information. So far the unreachable. The Mariner spacecraft, launched by the United States between 1965 and 1972, sent thousands of photographs of Mars. The Ranger and Surveyor series broadcast thousands of photographs of the lunar surface for scientific analysis and preparation before the manned moon landing in (July 1969), while millions of people around the world could watch the broadcast in color directly from the lunar surface .



Since 1960 television cameras have also been used extensively in orbiting meteorological satellites. Vidicon cameras recorded images prepared on land of clouds and weather conditions during the day, while cameras captured infrared images at night. The images from the satellites are not only used to predict the weather but to understand the global weather systems. We use high-resolution vidicon cameras aboard satellites for Earth Resources Technology (ERTS) to study crops and minerals and marine resources.