Keeping Up Appearances - S05 E02 - The Mayor's Fancy Dress Ball

Hyacinth prepares for the Mayor's fancy dress ball and is also on a mission to impress the new neighbours, a few streets away, but she's greatly displeased with the costumes Richard hires for them. After deciding on a better idea, Hyacinth finds that most of the female guests have exactly the same costume she has. Meanwhile, Rose is engaged to a Polish man whose name she cannot pronounce.