paragraph_text: The two systems were to run on a trial basis for six months; early television sets supported both resolutions. However, the Baird system, which used a mechanical camera for filmed programming and Farnsworth image dissector cameras for live programming, proved too cumbersome and visually inferior, and ended with closedown (at 22:00) on Saturday 13 February 1937.

paragraph_text: American Fascists: The Christian Right and the War on America is a non-fiction book by American Pulitzer Prize journalist Chris Hedges, published in January 2007. Hedges is a former seminary student with a master's degree in divinity from Harvard Divinity School and was a long-time foreign correspondent for "The New York Times".

paragraph_text: In Europe and Australia, the system was released to two separate marketing regions. One region consisted of most of mainland Europe (excluding Italy), and distribution there was handled by a number of different companies, with Nintendo responsible for most cartridge releases. Most of this region saw a 1986 release. Mattel handled distribution for the other region, consisting of the United Kingdom, Ireland, Canada, Italy, Australia and New Zealand, starting the following year. Not until the 1990s did Nintendo's newly created European branch direct distribution throughout Europe.

paragraph_text: Evangelische Omroep (EO, English: "Evangelical Broadcasting") is one of the twelve member-based broadcasting associations contributing to the Netherlands Public Broadcasting system. It has as its mission to bring people into contact with Jesus Christ and its statement of faith is a form of Evangelicalism. EO is one of the few broadcasting associations in the "pillarized" Dutch broadcasting system to have remained totally faithful to its religious roots. For a long time every one of its programmes made reference to God and to the Christian religion, although this is less often the case in the 21st century.

paragraph_text: After a series of test transmissions and special broadcasts that began in August 1936, the BBC Television Service officially launched on 2 November 1936 from a converted wing of Alexandra Palace in London. ``Ally Pally ''housed two studios, various scenery stores, make - up areas, dressing rooms, offices, and the transmitter itself, which then broadcast on the VHF band. BBC television initially used two systems on alternate weeks: the 240 - line Baird intermediate film system and the 405 - line Marconi - EMI system. The use of both formats made the BBC's service the world's first regular high - definition television service; it broadcast from Monday to Saturday between 15: 00 and 16: 00, and 21: 00 and 22: 00. The first programme broadcast -- and thus the first ever, on a dedicated TV channel -- was`` Opening of the BBC Television Service'' at 15: 00. The first major outside broadcast was the coronation of King George VI and Queen Elizabeth in May 1937.

paragraph_text: Legacy Meridian Park Medical Center, formerly Legacy Meridian Park Hospital, is an acute care hospital in Tualatin, Oregon, United States. Opened in 1973, it is operated by Legacy Health System. The facility is licensed for 150 beds, but operates only 128. Located in Clackamas County along the boundary with Washington County, it employs over 800 people and is Tualatin’s second largest employer.

paragraph_text: While considered "alternative" today, most alternative systems have existed since ancient times. After the public school system was widely developed beginning in the 19th century, some parents found reasons to be discontented with the new system. Alternative education developed in part as a reaction to perceived limitations and failings of traditional education. A broad range of educational approaches emerged, including alternative schools, self learning, homeschooling and unschooling. Example alternative schools include Montessori schools, Waldorf schools (or Steiner schools), Friends schools, Sands School, Summerhill School, The Peepal Grove School, Sudbury Valley School, Krishnamurti schools, and open classroom schools. Charter schools are another example of alternative education, which have in the recent years grown in numbers in the US and gained greater importance in its public education system.

paragraph_text: The War of Currents (sometimes called War of the Currents or Battle of Currents) was a format war involving the introduction of competing electric power transmission systems in the late 1880s and early 1890s. It included commercial competition, a debate over electrical safety, and a media / propaganda campaign that grew out of it, with the main players being the direct current (DC) based Edison Electric Light Company and the alternating current (AC) based Westinghouse Electric Company. It took place during the introduction and rapid expansion of the alternating current standard (already in use and advocated by several US and European companies) and its eventual adoption over the direct current distribution system. Three aspects have been conflated into the ``war '': open competition involving large electric companies and their developing systems, a general fear in the public's mind of death by accidental electrocution from high voltage AC leading to a debate over its safety and regulation, and the debate and behind - the - scene maneuvers associated with the introduction of the electric chair.

paragraph_text: Fascist Legacy is a 1989 BBC documentary TV miniseries about Italian war crimes during World War II. It consists of two parts.

paragraph_text: Von Neumann made fundamental contributions to mathematical statistics. In 1941, he derived the exact distribution of the ratio of the mean square of successive differences to the sample variance for independent and identically normally distributed variables. This ratio was applied to the residuals from regression models and is commonly known as the Durbin–Watson statistic for testing the null hypothesis that the errors are serially independent against the alternative that they follow a stationary first order autoregression.

paragraph_text: In 1918 Espanyol started a counter-petition against autonomy, which at that time had become a pertinent issue. Later on, an Espanyol supporter group would join the Falangists in the Spanish Civil War, siding with the fascists. Despite these differences in ideology, the derbi has always been more relevant to Espanyol supporters than Barcelona ones due to the difference in objectives. In recent years the rivalry has become less political, as Espanyol translated its official name and anthem from Spanish to Catalan.

paragraph_text: Francisco Pereira de Moura was responsible for the re-design of the economics currulum at the Instituto Superior de Economia e Gestão, ISEG (earlier called ISCEF, for Instituto Superior de Ciencias Economicas e Financeiras [1930] and ISE, Instituto Superior de Economia [1972], renamed ISEG in 1989), thus influencing for several decades the majority of economists in Portugal and beyond. Francisco Pereira de Moura is the author of a vast scientific legacy and authored the study that lead to the construction of the first steel mill in Portugal, still during the fascist régime.

paragraph_text: Visconti adapted the script with a group of men he selected from the Milanese magazine "Cinema". The members of this group were talented filmmakers and writers and played a large role in the emerging neorealist movement: Mario Alicata, Gianni Puccini, Antonio Pietrangeli and Giuseppe De Santis. When "Ossessione" was completed and released in 1943, it was far from the innocent murder mystery the authorities had expected; after a few screenings in Rome and northern Italy, prompting outraged reactions from Fascist and Church authorities, the film was banned by the Fascist government reestablished in the German occupied part of Italy after the September 1943 armistice. Eventually the Fascists destroyed the film, but Visconti managed to keep a duplicate negative from which all existing prints have been made. After the war, "Ossessione" encountered more problems with mass distribution, this time in the United States. As a result of the wartime production schedule, Visconti had never obtained the rights to the novel and Metro-Goldwyn Mayer began production on another version of the film, directed by Tay Garnett ("The Postman Always Rings Twice", 1946), while the Fascist ban on Visconti's work was still in effect.

paragraph_text: After a series of test transmissions and special broadcasts that began in August, regular BBC television broadcasts officially resumed on 1 October 1936, from a converted wing of Alexandra Palace in London, which housed two studios, various scenery stores, make-up areas, dressing rooms, offices, and the transmitter itself, now broadcasting on the VHF band. BBC television initially used two systems, on alternate weeks: the 240-line Baird intermediate film system and the 405-line Marconi-EMI system, each making the BBC the world's first regular high-definition television service, broadcasting Monday to Saturday from 15:00 to 16:00 and 21:00 to 22:00.

paragraph_text: GSA (Global Storage Architecture) is a distributed file system created by IBM to replace the Andrew File System and the DCE Distributed File System.

paragraph_text: The Nippon Hōsō Kyōkai (NHK, the Japan Broadcasting Corporation) began conducting research to "unlock the fundamental mechanism of video and sound interactions with the five human senses" in 1964, after the Tokyo Olympics. NHK set out to create an HDTV system that ended up scoring much higher in subjective tests than NTSC's previously dubbed "HDTV". This new system, NHK Color, created in 1972, included 1125 lines, a 5:3 aspect ratio and 60 Hz refresh rate. The Society of Motion Picture and Television Engineers (SMPTE), headed by Charles Ginsburg, became the testing and study authority for HDTV technology in the international theater. SMPTE would test HDTV systems from different companies from every conceivable perspective, but the problem of combining the different formats plagued the technology for many years.

paragraph_text: "Guix System Distribution" (abbreviated "GuixSD") is a Linux distribution built around the GNU Guix package manager. It enables a declarative operating system configuration and allows reliable system upgrades that can easily be rolled back. It uses the Linux-libre kernel, with support for the GNU Hurd kernel under development. On February 3, 2015, the distribution was added to the Free Software Foundation's list of free Linux distributions.

paragraph_text: Most electrification systems use overhead wires, but third rail is an option up to about 1,200 V. Third rail systems exclusively use DC distribution. The use of AC is not feasible because the dimensions of a third rail are physically very large compared with the skin depth that the alternating current penetrates to (0.3 millimetres or 0.012 inches) in a steel rail). This effect makes the resistance per unit length unacceptably high compared with the use of DC. Third rail is more compact than overhead wires and can be used in smaller-diameter tunnels, an important factor for subway systems.

paragraph_text: Publishers from different factions of the Latter Day Saint movement have published different chapter and verse notation systems. The two most significant are the LDS system, introduced in 1879, and the RLDS system, which is based on the original 1830 chapter divisions.

paragraph_text: In October 1922, Mussolini took advantage of a general strike by workers and announced his demands to the government to give the Fascist Party political power or face a coup. With no immediate response, a small number of Fascists began a long trek across Italy to Rome which was known as the ``March on Rome '', claiming to Italians that Fascists were intending to restore law and order. Mussolini himself did not participate until the very end of the march, with D'Annunzio being hailed as leader of the march until it was learned that he had been pushed out of a window and severely wounded in a failed assassination attempt, depriving him of the possibility of leading an actual coup d'état orchestrated by an organization founded by himself. Under the leadership of Mussolini, the Fascists demanded Prime Minister Luigi Facta's resignation and that Mussolini be named Prime Minister. Although the Italian Army was far better armed than the Fascist paramilitaries, the Italian government under King Vittorio Emmanuele III faced a political crisis. The King was forced to decide which of the two rival movements in Italy would form the new government: Mussolini's Fascists or the anti-royalist Italian Socialist Party, ultimately deciding to endorse the Fascists.

Question: How long did the distributor of Fascist Legacy alternate different broadcasting systems?
Answer: six months