The purpose of this article is to support the possibly controversial claim that for a show which claims to be all about time travel, Doctor Who doesn’t actually involve all that much time travel. Oh, sure, the Doctor has a time machine, but it tends to be used only as a means of getting to wherever he wants to go (or, as she herself once put it, wherever he needs to go), rather than time travel actually being relevant to the plot of the episode. Most episodes start with the Doctor and Companion turning up somewhere in the TARDIS and then staying in the same time zone all the way through; as we shall see, very few involve time travel which couldn’t be removed with no effect on the storyline.
I’m going to examine all the episodes of the Russell T Davies era, i.e. the Ninth and Tenth Doctor stories. Mainly this is because I haven’t finished watching the whole of the Moffat era yet, but I also suspect my point will be better made here since the show has tended to go further into issues of time travel, time paradoxes and so on under Moffat’s leadership.