Do you know what Epiphany is? Find out with Sean Fletcher and Rev Kate Bottley as they explore different aspects of its meaning. Sean joins a Greek Orthodox priest in the magnificent Cathedral of Saint Sophia in London, while Kate meets astronomer and theologian Rev Professor David Wilkinson who shares scientific theories about the star that guided the Wise Men to Bethlehem. And see a Greek Orthodox baby baptism in action! Sunday 6th January 2019 – new, more regular time of 1:15pm BBC One and at