Call the Midwife show-runner Heidi Thomas has told how the upcoming final episode of series 15 left her weeping more than any of the other 138 instalments she has made. And she also revealed that, by the time series 16 makes it to the screen in a few years’ time, Nonnatus House will have been replaced by a community hospital. “I shed more tears during the making of that episode than any other,” she admitted. “I thought, ‘Am I crying because of the story or am I crying because it’s our last