Doctor Who

Peter Capaldi's Doctor is on his last legs and refusing to change, when he runs into the one man even more stubborn than him: his very first self, played by David Bradley, out in the polar snow. Add a First World War captain who has wandered out of his own time, and you get a quiet, funny and very moving goodbye. Steven Moffat bows out too, so it's a double farewell. Not a big, noisy monster mash, more a warm hug with a lump in its throat. Put the kettle on, pick the good chair and keep the tissues handy once the wrapping paper has been wrestled into a bin bag.