On With the Dance was recorded in the studio on 9 and 10 January1975, with a retake filmed on the morning of 7 April. It is the first episode to feature Anne Yarker and Jonathan Seeley as Virginia's children, Alice and William, and Karen Dotrice as Lily Hawkins. The events between the end of series 4 and the this episode are covered in a bridge story.
On With the Dance opens on 19 July1919 and the Victory Parade is passing near Eaton Place. Georgina is taking part, and Rose, Lily and Daisy go on the street to watch while Hudson and Mrs Bridges use Hudson's deerstalkingtelescope to view the March from an upstairs window. Edward and Daisy have left service and been replaced by Frederick Norton, James's former batman, and Lily Hawkins. Edward, now a door-to-door salesman, and Daisy, who is pregnant, visit Eaton Place. However, there is a tense atmosphere and they don't stay long.
Richard and Virginia return from their honeymoon in Paris, having also been to Versailles for the signing of the Treaty and they start looking for a new house. With only Georgia and James living at Eaton Place, there is not enough work for the servants to do. After Virginia refuses to agree to moving to 165, James gives the servants four weeks notice and says he will sell the house. However, a week or so later James and Georgina entertain Virginia's children, William and Alice, for the afternoon while she and Richard go shopping. When they return to collect the children, William and Alice say what a wonderful time they have had. James and Georgina then persuade Virginia into agreeing to move to Eaton Place.