paragraph_text: Early discussions of examples of two - person games occurred long before the rise of modern, mathematical game theory. The first known discussion of game theory occurred in a letter written by Charles Waldegrave, an active Jacobite, and uncle to James Waldegrave, a British diplomat, in 1713. In this letter, Waldegrave provides a minimax mixed strategy solution to a two - person version of the card game le Her, and the problem is now known as Waldegrave problem. James Madison made what we now recognize as a game - theoretic analysis of the ways states can be expected to behave under different systems of taxation. In his 1838 Recherches sur les principes mathématiques de la théorie des richesses (Researches into the Mathematical Principles of the Theory of Wealth), Antoine Augustin Cournot considered a duopoly and presents a solution that is a restricted version of the Nash equilibrium.

paragraph_text: The Power of Women was an early American television program broadcast on the DuMont Television Network. The series ran from July to November of 1952. This thirty-minute-long series was a public affairs program originally hosted by Vivien Kellems. Kellems would leave partway through the series' run.

paragraph_text: The Sunday Edition is a television programme broadcast on the ITV Network in the United Kingdom focusing on political interview and discussion, produced by ITV Productions. The show was hosted by Andrew Rawnsley and Andrea Catherwood.

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: The PBA on KBS was a presentation of Philippine Basketball Association games on Kanlaon Broadcasting System (now the Radio Philippines Network), and was the first broadcaster of the PBA on television.

paragraph_text: Who's Whose is a panel quiz television game show that ran on the Columbia Broadcasting System (CBS) television network. It premiered as a TV series on June 25, 1951, and is noted for being one of the first television series to be dropped after one episode.

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: 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: ARPANET and SITA HLN became operational in 1969. Before the introduction of X.25 in 1973, about twenty different network technologies had been developed. Two fundamental differences involved the division of functions and tasks between the hosts at the edge of the network and the network core. In the datagram system, the hosts have the responsibility to ensure orderly delivery of packets. The User Datagram Protocol (UDP) is an example of a datagram protocol. In the virtual call system, the network guarantees sequenced delivery of data to the host. This results in a simpler host interface with less functionality than in the datagram model. The X.25 protocol suite uses this network type.

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 opinion of the majority of Croatian linguists[citation needed] is that there has never been a Serbo-Croatian language, but two different standard languages that overlapped sometime in the course of history. However, Croatian linguist Snježana Kordić has been leading an academic discussion on that issue in the Croatian journal Književna republika from 2001 to 2010. In the discussion, she shows that linguistic criteria such as mutual intelligibility, huge overlap in linguistic system, and the same dialectic basis of standard language provide evidence that Croatian, Serbian, Bosnian and Montenegrin are four national variants of the pluricentric Serbo-Croatian language. Igor Mandić states: "During the last ten years, it has been the longest, the most serious and most acrid discussion (…) in 21st-century Croatian culture". Inspired by that discussion, a monograph on language and nationalism has been published.

paragraph_text: New York City's commuter rail network is the largest in North America. The rail network, connecting New York City to its suburbs, consists of the Long Island Rail Road, Metro-North Railroad, and New Jersey Transit. The combined systems converge at Grand Central Terminal and Pennsylvania Station and contain more than 250 stations and 20 rail lines. In Queens, the elevated AirTrain people mover system connects JFK International Airport to the New York City Subway and the Long Island Rail Road; a separate AirTrain system is planned alongside the Grand Central Parkway to connect LaGuardia Airport to these transit systems. For intercity rail, New York City is served by Amtrak, whose busiest station by a significant margin is Pennsylvania Station on the West Side of Manhattan, from which Amtrak provides connections to Boston, Philadelphia, and Washington, D.C. along the Northeast Corridor, as well as long-distance train service to other North American cities.

paragraph_text: Melodifestivalen 2001 was the selection for the 41st song to represent Sweden at the Eurovision Song Contest. It was the 42nd time that this system of picking a song had been used. 1,567 songs were submitted to SVT for the competition. The final was broadcast on SVT1 and Sveriges Radio's P4 network.

paragraph_text: In November 2006, the BBC's Newsnight program presented research by filmmaker Shane O'Sullivan alleging that several CIA officers were present on the night of the assassination. Three men who appear in films and photographs from the night of the assassination were positively identified by former colleagues and associates as former senior CIA officers who had worked together in 1963 at JMWAVE, the CIA's main anti-Castro station based in Miami. They were JMWAVE Chief of Operations David Morales, Chief of Maritime Operations Gordon Campbell and Chief of Psychological Warfare Operations George Joannides. However, several people who had known Morales, including family members, were adamant that he was not the man who O'Sullivan said was Morales. After O'Sullivan published his book, assassination researchers Jefferson Morley and David Talbot also discovered that Campbell had died of a heart attack in 1962, six years prior to the assassination of Kennedy. In response, O'Sullivan stated that the man on the video may have used Campbell's name as an alias. He then took his identifications to the Los Angeles Police Department whose files showed the men he identified as Campbell and Joannides to be Michael Roman and Frank Owens, two Bulova sales managers attending the company's convention in the Ambassador. O'Sullivan stood by his allegations stating that the Bulova watch company was a "well-known CIA cover".

paragraph_text: What's the Story is an American television panel show broadcast on the DuMont Television Network from July 25, 1951, to September 23, 1955, and aired in eleven different timeslots.

paragraph_text: Timeslip is a British children's science fiction television series made by ATV for the ITV network and broadcast between 1970 and 1971. The series centres on two children, Simon Randall (Spencer Banks) and Liz Skinner (Cheryl Burfield) who discover the existence of a strange anomaly, known as the "Time Barrier", that enables them to travel in time to different historical periods in alternate pasts and futures. The two children have contrasting personalities; whereas Simon is studious, Liz is something of a crybaby, and this often leads to conflict between the two. However, as the series progresses, their antagonism matures into a deep bond of friendship.

paragraph_text: Savage Inequalities: Children in America's Schools is a book written by Jonathan Kozol in 1991 that discusses the disparities in education between schools of different classes and races. It is based on his observations of various classrooms in the public school systems of East St. Louis, Chicago, New York City, Camden, Cincinnati, and Washington D.C.. His observations take place in both schools with the lowest per capita spending on students and the highest, ranging from just over $3,000 in Camden, New Jersey to a maximum expenditure of up to $15,000 in Great Neck, Long Island.

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: The Funimation dubbed episodes also aired in Canada, Ireland, the United Kingdom, the Netherlands, Belgium, Australia and New Zealand. However, beginning with episode 108 (123 uncut), AB Groupe and Westwood Media (in association with Ocean Studios) produced an alternate English dub. The alternate dub was created for broadcast in the UK, the Netherlands and Ireland, although it later aired in Canada. Funimation's in - house dub continued to air in the U.S., Australia and New Zealand. The Westwood Media production used the same voices from the original short - lived dub syndicated in the USA (Which later aired on Toonami), it featured an alternate soundtrack by Tom Keenlyside and John Mitchell, and it used the same scripts and edits as the TV edit of Funimation's in - house dub (although the UK and Europe's version was slightly edited down from this). In Australia, Dragon Ball Z was broadcast by the free - to - air commercial network, Network Ten during morning children's programming, Cheez TV, originally using the censored Funimation / Saban dub before switching to Funimation's in - house dub. Dragon Ball Z originally aired on the British Comedy Network in Fall 1998.

paragraph_text: Created by Gene Deitch under the Terrytoons studio (which by that time was a subsidiary of CBS, the network that broadcast "Captain Kangaroo"), "Tom Terrific" ran in a series of five-minute cartoons created specifically for the "Captain Kangaroo" show from 1957-1959, and was rerun on "Kangaroo" for years thereafter. For several years after 1962, "Tom Terrific" would be broadcast every other week, alternating with "Lariat Sam", another Terrytoons creation.

Question: For how long did the network that was discussed alternate different broadcasting systems?
Answer: six months