Songs of Praise presenters each choose their favourite carol, and some are sung by candlelight in Winchester to celebrate Christmas. Sean Fletcher visits the Hospital of St Cross to find out about their tradition of giving food to pilgrims, and he catches up with former presenter Debbie Thrower, now a lay cannon in Winchester Cathedral. Carols include O Come All Ye Faithful, Away in a Manger, When a Child Is Born and Once in Royal David's City