All Creatures Great and Small (TV series) that be wanted to cast the role. Sellars, instead, asked Timothy if he would accept the role of Tristan Farnon. "I had a wife, I had children, I had a mortgage to pay, and I wasn't working. So I said, 'No. It's Herriot or nothing.'" Timothy put everything on the line. "I got home one night, at about 9 o'clock. My wife was washing up in the kitchen. I walked into the kitchen and she said, without turning round, 'You've got the Herriot part.'" Timothy also stated that, after all of the roles had been cast except that of Herriot,
All Creatures Great and Small (TV series) stories—usually a story thread centred on James, and a second centred on Siegfried or Tristan. The continuity of the show followed the general arc of the books: James' arrival at Darrowby in 1937, his growing experience as a vet, his humorous attempts at romance with Helen, and their eventual marriage. The programme ended in 1980 at the stage where the characters were drawn into the Second World War, the final exterior shots broadcast filmed during the winter of 1979. This completed the adaptation of all the novels which Alf Wight had written up to that point. Two 90-minute Christmas Specials