The Duchess of Cambridge visits the set of Downton Abbey

The video explores Kate's involvement in a kitchen setting, her admiration for Downton Abbey, and her interaction with the cast. It highlights the authenticity of the show's set and its unexpected global success, with Kate possibly contributing to its popularity.

What does the term 'household once indicator' refer to in the context of the text?

What was the significance of the final treat mentioned in the text?