Background: David Paradine Frost was born in Tenterden, Kent, on 7 April 1939, the son of a Methodist minister of Huguenot descent, the Rev. Wilfred John "W. J." Paradine Frost, and his wife, Mona (Aldrich); he had two elder sisters. While living in Gillingham, Kent, he was taught in the Bible class of the Sunday school at his father's church (Byron Road Methodist) by David Gilmore Harvey, and subsequently started training as a Methodist local preacher, which he did not complete. Frost attended Barnsole Road Primary School in Gillingham, St Hugh's School, Woodhall Spa, Gillingham Grammar School and finally - while residing in Raunds - Wellingborough Grammar School. Throughout his school years he was an avid football and cricket player, and was offered a contract with Nottingham Forest F.C.
Context: Frost was one of the "Famous Five" who launched TV-am in February 1983 but, like LWT in the late 1960s, the station began with an unsustainable "highbrow" approach. Frost remained a presenter after restructuring. Frost on Sunday began in September 1983 and continued until the station lost its franchise at the end of 1992. Frost had been part of an unsuccessful consortium, CPV-TV, with Richard Branson and other interests, which had attempted to acquire three ITV contractor franchises prior to the changes made by the Independent Television Commission in 1991. After transferring from ITV, his Sunday morning interview programme Breakfast with Frost ran on the BBC from January 1993 until 29 May 2005. For a time it ran on BSB before moving to BBC 1. Frost hosted Through the Keyhole, which ran on several UK channels from 1987 until 2008 and also featured Loyd Grossman. Produced by his own production company, the programme was first shown in prime time and on daytime television in its later years. Frost worked for Al Jazeera English, presenting a live weekly hour-long current affairs programme, Frost Over The World, which started when the network launched in November 2006. The programme regularly made headlines with interviewees such as Tony Blair, President Omar al-Bashir of Sudan, Prime Minister Benazir Bhutto of Pakistan and President Daniel Ortega of Nicaragua. The programme was produced by the former Question Time editor and Independent on Sunday journalist Charlie Courtauld. Frost was one of the first to interview the man who authored the Fatwa on Terrorism, Muhammad Tahir-ul-Qadri. During his career as a broadcaster Frost became one of Concorde's most frequent fliers, having flown between London and New York an average of 20 times per year for 20 years. In 2007, Frost hosted a discussion with Libya's leader Muammar Gaddafi as part of the Monitor Group's involvement in the country. In June 2010, Frost presented Frost on Satire, an hour-long BBC Four documentary looking at the history of television satire.
Question: what did he work on after 19080?
Answer: Frost on Sunday began in September 1983 and continued until the station lost its franchise at the end of 1992.

Problem: Background: Reasoner was born at First Street North in Dakota City, Iowa; he and his older sister, Esther, were the children of Eunice (Nicholl) and Harry Ray Reasoner, who married in 1911. Reasoner was taught to read by his parents before entering school, gaining a strong vocabulary from his mother. Reasoner attended West High School in Minneapolis. During his time at the school, Reasoner developed his interest in journalism.
Context: In 1970, Reasoner was hired away from CBS by ABC to become an anchor on the network's newly revamped nightly newscast. At the time of his hire, the network's New York-based broadcast, ABC News, was anchored by Howard K. Smith and Frank Reynolds, both former colleagues of Reasoner at CBS. Beginning in December 1970, Reasoner was moved into Reynolds' position (Reynolds thus became the network's chief Washington correspondent), and the newscast became known as ABC Evening News. Reasoner anchored the news alongside Smith until 1975, when he took the sole anchor position while Smith moved into a commentary role. The next year, however, ABC decided to pair Reasoner with a new co-anchor, former Today Show co-host Barbara Walters; ABC had gone to great lengths to hire her away from NBC. Walters and Reasoner did not enjoy a close relationship; Reasoner did not like sharing the spotlight with a co-anchor and also was uncomfortable with Walters' celebrity status. It was also widely believed that Reasoner disliked the idea of a woman anchoring the network news, which he himself denied: "I am trying to keep an open mind about it." In another interview, Reasoner said, "I've worked in journalism for women and with women for years. For two years I did a CBS morning news program with a woman. I feel they're no worse than men are." After two years of co-anchoring ABC Evening News with Walters, Reasoner departed the network after nearly eight years in June 1978 and returned to CBS, where he resumed his duties on 60 Minutes. Shortly after his departure ABC elected to scrap ABC Evening News altogether and reworked the newscast into World News Tonight. Reasoner stayed with 60 Minutes until his retirement, on May 19, 1991.
Question: When did Reasoner go to ABC?
Answer:
In 1970,