There's an article about the success of the new Dr Who series at Strange Horizons this week:
Regeneration: The Return of Doctor Who, by Alasdair Stuart.
And it is staggeringly ignorant. I mean, come on:
However, this change in format also went hand in hand with the adoption of one of the most influential narrative techniques of the last decade: the story arc. It was pioneered in genre television by J. Michael Straczynski's Babylon 5, a five-year-long series which was plotted at three separate levels. Each episode had its own internal story; these combined to tell a season-long story and the five seasons combined to form what Straczynski described as a "televisual novel."
Hello, Blake's 7, hello Key to Time, hello Trial of a Time Lord, hello Guardian and E-Space trilogies, Keeper of Traken through Castrovalva, etc...