Keeping Up Appearances - S05 E04 - A Riverside Picnic

Hyacinth organises a 'waterside supper with riparian entertainment', much to the despair of those she invites, which consists of Elizabeth, Emmet, the vicar and his wife. Despite Emmet's and the vicar's best efforts they find getting out of Hyacinth's function impossible. As usual her plans of perfection are shattered, this time because a dredger dumps dirt in her chosen location.