All Creatures Great and Small - Season 7 - Eps 4: A Friend for Life
Tragedy strikes Bill Shadwell when his herd of dairy shorthorns contracts Johne's disease. As Shadwell approaches retirement, his son is keen to move into more profitable Friesian dairy cattle -- a move which means both James and Siegfried are caught up in the family's battle of wills. Mr. Grimsdale's bull poses problems of a different kind when Siegfried is convinced it has swallowed a dangerous metal object. But tightfisted Grimsdale is not convinced that an operation is needed. Tristan's new metal detector could prove to be the solution to a tricky dilemma.
About All Creatures Great and Small

Title: All Creatures Great and Small
First Air Date: 1978-01-08
Last Air Date: 1990-11-17
Status: Ended
Rating: 7.7/10 (from 43 votes)
Language: EN
Seasons: 8
Total Episodes: 87
Network: BBC One
Genres: Comedy, Drama
Production Companies: BBC
Synopsis
The trials and misadventures of the staff at a country veterinary office in Yorkshire. James Herriot, a young animal surgeon, moves to a small Yorkshire town to begin his first job.
Cast

Lynda Bellingham
Helen Herriot

Robert Hardy
Siegfried Farnon

Christopher Timothy
James Herriot

Peter Davison
Tristan Farnon

Jean Heywood
Mrs Alton