As Call the Midwife takes its leave from our TV screens for at least the next two years, there was an awful lot to think about during the finale of season 15. Here are the 10 things I enjoyed the most: 1) Pam Ferris being the blast from the past who turned up as Sister Evangelina to help Sister Monica Joan at the very end. It was fitting that she was telling her off for “shilly-shallying” and making her smile. 2) Sister Catherine’s eulogy in the church was extraordinarily heartfelt (well done