It is revealed during the show's run that Cissy is the elder of the two Meldrum daughters. Although Catherine Rabett (who plays Cissy) is just under one year younger than Susie Brann (who plays her younger sister, Poppy).
Mabel Wheeler:
That'll be nice.
In the opening credits, there are sound effects accompanying the actions of the animated characters, except for the pilot episode, where all of these actions are silent and the only sound effect heard is the bell ringing as part of the theme tune.
English