TV Series:
* Upstairs, Downstairs (1971-1975, 1977): He co-created and wrote for this groundbreaking series about the lives of an aristocratic family and their servants in Edwardian England. It won numerous awards, including four Primetime Emmy Awards.
* The Forsyte Saga (1967): Shaughnessy adapted John Galsworthy's novel for television, writing numerous episodes. This adaptation was a major success and helped to revive interest in Galsworthy's work.
* The Pallisers (1974): He adapted Anthony Trollope's novel for television, writing several episodes of this series.
* The Duchess of Duke Street (1976): This series followed the lives of a young woman who inherits a restaurant in London.
* The First Churchills (1969): This series focused on the early lives of John Churchill, the first Duke of Marlborough, and his wife, Sarah.
* I, Claudius (1976): He was a writer on this acclaimed series, which told the story of the Roman emperor Claudius.
Other Works:
* The World at War (1973-1974): He wrote some episodes for this acclaimed documentary series about World War II.
* The Life and Times of David Lloyd George (1981): He was a writer on this series about the British Prime Minister.
In addition to these works, Shaughnessy also wrote for other television series, including The Adventures of Robin Hood, The Avengers, and Danger Man. He was a master of historical drama and his work helped to bring classic literature and history to a wider audience.