There were two miners' strike under Ted Heath's Government: one in 1972 and one in 1974. The events in this episode combine elements from both. The scene at Saltley Gate and the poster saying "Wanted: A Decent Wage" are from the 1972 strike. Ted Heath's speech to announce the three-day week is from the 1974 strike.
Wallis Simpson was buried along side her husband when she died in 1986. At her funeral were the Queen and the royal family. She was buried under the name Wallis, Duchess of Windsor.
Michael Maloney plays Ted Heath, Prime Minister from June 1970 to March 1974. He's previously played Prime Minister John Major in "Margaret (2009)," Home Secretary Jack Straw in Pinochet's Last Stand (2006), and Prime Minister Sir Robert Peel in The Young Victoria (2009).