They're knitted, pink, long-snouted mice-like aliens, who enjoy a diet of blue-string pudding and soup made by the Soup Dragon. For some reason, this set-up captured the hearts and minds of young viewers. The Clangers communicate through whistling, although there was a real script, in English, which was turned into Clanglish. Despite this, Auntie once objected to a script which read /Oh sod it!' No swearing at the BBC please – not even if whistled.