It feels, every second of the episode, like Doctor Who. It feels like it was made by people who knew what Doctor Who was. It’s impossible. The fact that a Police Box would look out of place everywhere in the universe within six years, that the theme and TARDIS console would be iconic, that Britain would go to decimal currency, none of this could have been there in 1963. But watching it, that knowledge does not feel like a secret history, but like a real history, there and unfolding in front of us. And when we stare into it, it is impossibly big.
It is 5:40 p.m. on November the 23rd 1963. American President John F Kennedy has been dead for less than twenty four hours. And everything in the world has changed. Forever.
[extract from Tardis Eruditorum Vol. 1 by Elizabeth Sandifer]