One of the earliest known uses of the term was in 2007, when Steven Moffat called Blink "the cheap, no CGI, Doctor-lite episode" of series 3 in Doctor Who Magazine #393. DWM staff writer David Darlington, who was conducting an interview with Moffat in that issue, picked up on this "behind-the-scenes" meaning of the word, and called Blink the "double-banking episode", which Moffat confirmed meant "the one that doesn't have the Doctor in". DWM subsequently reprinted Moffat in DWMSE #17's exploration of the making of Blink. Later, while he was in production of series 5, Moffat gave an interview to Non-Sports Update in which he said that Doctor-lite episodes are "purely a scheduling issue", arising out of a need to film fourteen episodes in the time necessary to film thirteen, meaning that the