Even before I saw the second half of this episode<\/a>, I loved the irony of the title. It provides a great illustration of one of the difficulties in telling time-travel stories, and an even greater difficulty of making sense of an allegedly timeless deity encountered in and through history and\/or stories. How can the \u201cend of time\u201d have two parts?! How can one tell a story about a reality that transcends time?<\/p>\n I won\u2019t give away details about the episode, but if you have yet to watch it and never keep informed about Doctor Who news then you might want to stop reading now. For the rest of you, it presumably is no spoiler now to say farewell to David Tennant<\/a>, whose performance as the Doctor has been a delight. Matt Smith is probably going to consciously emulate Peter Davison, since his youth<\/a> echoes that regeneration. We\u2019ll see if his manner shows any parallels.<\/p>\n Here\u2019s a preview<\/a> of what\u2019s in store when Doctor Who airs again in the Spring:<\/p>\n