Strictly fans work out reason next week’s tense final will be a ‘show first’ after final three couples were revealed

STRICTLY Come Dancing fans have noticed next weekend’s finale will mark a show first. Karen Carney, George Clarke and Amber Davies will battle it out for the Glitterball and the perfect pre-Christmas present. And it will be new ground for whichever of their pro partners wins the title, with Carlos Gu, Alexis Warr and Nikita…