Lovejoy (1986)

S5E13 The Price of Fish

Lovejoy receives an invitation to join Charlotte for the weekend at her best friend's home. The friend is in financial trouble and seeks to have a clock appraised, but Lovejoy stumbles upon a valuable stuffed fish that could be sold, leading to a series of mix-ups. Meanwhile, Tinker is determined to stop Charlie Gimbert's plans to convert Felsham Hall into a health retreat. After examining a twelfth-century document, he begins grazing sheep around the Hall. In retaliation, Charlie threatens to kick Lovejoy Antiques out of the stable yard, prompting Tinker and Beth to visit a health retreat.