and Small has been produced by Playground Entertainment for Channel 5 in the United Kingdom, and PBS in the United States. The series returned for its third run in 2022 with Callum Woodhouse playing Tristan in each series to date. Later life and death In retirement, Sinclair joined an afterdinner speaking agency, and was often invited to give speeches at farmers' functions in the north of England. In 1979, he toured the United Kingdom giving talks to the Ladies' Circle and the Women's Institute, on the subjects of Herriot and being a veterinarian. He was later paid to go on a cruise to speak on the same themes. In addition to these talks, he would host informal evenings for American tourist groups visiting "Herriot country", on tours organised by Earl Peel. The tours would include lunch at the Kings Arms Hotel, Askrigg, where much of the television series of All Creatures Great and Small was filmed. Later in 1979, Sinclair embarked on a lecture tour of veterinary schools in the United States. On 7November 1979, he spoke to the student chapter of the Iowa American Veterinary Medical Association (AVMA) at the C. Y. Stephens Auditorium. The audience numbered over a thousand and he was presented with a replica statue of "The Gentle Doctor" for his contribution to veterinary medicine. Later in the same month, he spoke at the twelfth conference of the American Association of Bovine Practitioners. To mark the occasion, the governor of Texas signed a proclamation declaring him an honorary citizen of the state. The mayor of San Antonio also issued a proclamation naming him honorary alcalde (mayor) of the city. Sinclair was interviewed on 21October 1980 by Sue MacGregor when Woman's Hour broadcast from Harrogate. However, he had begun to lose weight, and was admitted to St James's University Hospital, Leeds, for tests. His condition worsened until a new consultant was appointed to aid with a diagnosis. It was thought he was suffering from a rare pituitary gland disorder, and consequently, a range of drugs were prescribed. His condition improved but he had to remain on steroids for the rest of his life. He had been suffering from circulatory problems for some time and a visit to Australia had to be cancelled. He was also due to appear as the lead speaker at the centennial annual meeting of the New York State Veterinary Medical Society, but he