For those of a certain age, Camberwick Green is a programme guaranteed to spark nostalgia. At the start of each episode, we saw a tall, hexagonal box sitting on a table. This was to be our way in to the charmingly old-fashioned world of Windy Miller, Mrs Honeyman the gossip, PC McGarry ("number four! five! two!") and the rest.

"Here is a box, a musical box, Wound up and ready to play. But this box can hide a secret inside. Can you guess what is in it today?"

And from the box would emerge one of the residents of Camberwick Green.