As for the BBC, what is there left to say about it? Can it show The Wizard of Oz again? Can it only run the film after the 9pm watershed? Must the announcer warn: “This children’s story contains Munchkin choruses that some viewers may find offensive”? Its decision to ban every part of the song except for a five-second clip in a news report shows clearly something that many people outside the media rarely understand: the BBC folds under pressure.