1. A timely reminder
No amount of foresight could have anticipated that this episode of Doctor Who would be aired in the week of Margaret Thatcher’s passing. As it was, though, it meant that the schedules in the week leading up to this broadcast were full of echoes of the 1980s.
The pre-credits sequence refers to “NATO exercises”, which the Captain dismisses as “sabre-rattling”. Given that the story is set in 1983, this could be a reference to Able Archer 83, a ten-day exercise in November which led to the USSR’s own escalation, in the belief that the war games could be masking preparations for a genuine conflict.
Although if that were the case, and this episode is taking place while UK audiences were celebrating the 20th anniversary of a certain TV show by watching Elisabeth Sladen roll down the world’s gentlest incline, the North Pole would be a lot darker than it is shown to be here…