It was only Camberwick Green. Trumpton opened with the Town Hall clock striking 9 and Mrs Cobbett setting up to sell her flowers under the statue of Queen Victoria. I can't remember how Chigley started, but it didn't have the music box. Camberwick Green started with "Here is a box, A musical box,Wound up and ready to play,This box can hide a secret inside, Can you guess what is in it today?' and then the central character for that day would appear. Did Chigley always start with Lord Bellborough going to fire up his steam engine, or was it just that scene happened in every episode? and of course there was the closing dance for the factory workers (obviously had no life!!!)