This is a classic plot for the series, involving feuding family members and a murder in an interesting location (a relish factory). As it happens, the US Biography Channel premiered this episode on the same day they re-ran the very first pilot episode of MM. Both episodes begin with an elderly lady on a 3-wheeled bicycle, cycling through town greeting various inhabitants. Was this deliberate? Looks like a tribute to me! Annette Crosbie, who has many film and TV credits behind her, puts in another fine performance as a slightly daft old woman whose past figures significantly in the development of the plot. Seeing the pilot with a series 8 episode back-to-back also revealed the development of wrinkles in the main characters. It happens to the best of us.