Eleventh Doctor Matt Smith and his companions have their first Christmas together in this festive episode of the hit sci-fi drama. Newlyweds Amy and Rory are trapped on a crashing space liner and the only way the Time Lord can rescue his friends is to save the soul of a lonely old miser. But it seems the Scrooge-like Sardick, the richest man in Sardicktown, may be beyond redemption. Michael 'Dumbledore' Gambon and singer Katherine Jenkins guest star, with Karen Gillan and Arthur Darvill. There's spangly Christmas Day viewing in the form of Strictly Come Dancing's Christmas Special at 7.00pm. Bruce Forsyth and Tess Daly invite five Strictly newcomers to don their dancing shoes and compete for the coveted Christmas trophy. Hoping to spread a little yuletide magic are TV presenter Fern Britton, EastEnders actress June Brown (yep, Dot Cotton herself), comedienne Ronni Ancona, Torchwood star John Barrowman and Vince Cable MP.