Background: Secretariat (March 30, 1970 - October 4, 1989) was an American Thoroughbred racehorse who, in 1973, became the first Triple Crown winner in 25 years. His record-breaking win in the Belmont Stakes, where he left the field 31 lengths behind him, is widely regarded as one of the greatest races of all time. During his racing career, he won five Eclipse Awards, including Horse of the Year honors at ages two and three. He was elected to the National Museum of Racing and Hall of Fame in 1974.
Context: The 1973 Kentucky Derby on May 5 attracted a crowd of 134,476 to Churchill Downs, then the largest crowd in North American racing history. The bettors made the entry of Secretariat and Angle Light the 3-2 favorite, with Sham the second choice at 5-2. The start was marred when Twice a Prince reared in his stall, hitting Our Native, positioned next to him, and causing Sham to bang his head against the gate, loosening two teeth. Sham then broke poorly and cut himself, also bumping into Navajo. Secretariat avoided problems by breaking last from post position 10, then cut over to the rail. Early leader Shecky Greene set a reasonable pace, then gave way to Sham around the far turn. Secretariat came charging as they entered the stretch and battled with Sham down the stretch, finally pulling away to win by 2 1/2 lengths. Our Native finished eight lengths further back in third. On his way to a still-standing track record of 1:59 2/5, Secretariat ran each quarter-mile segment faster than the one before it. The successive quarter-mile times were :25 1/5, :24, :23 4/5, :23 2/5, and :23. This means he was still accelerating as of the final quarter-mile of the race. No other horse had won the Derby in less than 2 minutes before, and it would not be accomplished again until Monarchos ran the race in 1:59.97 in 2001. Sportswriter Mike Sullivan later said: I was at Secretariat's Derby, in '73 ... That was ... just beauty, you know? He started in last place, which he tended to do. I was covering the second-place horse, which wound up being Sham. It looked like Sham's race going into the last turn, I think. The thing you have to understand is that Sham was fast, a beautiful horse. He would have had the Triple Crown in another year. And it just didn't seem like there could be anything faster than that. Everybody was watching him. It was over, more or less. And all of a sudden there was this, like, just a disruption in the corner of your eye, in your peripheral vision. And then before you could make out what it was, here Secretariat came. And then Secretariat had passed him. No one had ever seen anything run like that - a lot of the old guys said the same thing. It was like he was some other animal out there.
Question: What happened after that?
Answer: causing Sham to bang his head against the gate, loosening two teeth. Sham then broke poorly and cut himself, also bumping into Navajo.

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 else did he work on after 1980?
Answer:
Frost hosted Through the Keyhole, which ran on several UK channels