Day 205: The Wheel In Space Episode 2

Of note in this episode is the first occasion where the pseudonym Dr John Smith is used to cover the fact that the Doctor's name is not generally told to people. It's used in a hurried fashion, as Jamie has to quickly come up with a solution to the problem that has arisen, and brings up the fact that this whole thing about the Doctor having the pseudonym of John Smith is not an idea that has been meticulously prepared. Instead, it's an idea that's been made up on the fly, to just answer someone as quickly as possible. What's also noticeable is how quickly this idea took off, as it becomes the go-to pseudonym, and given that the previous serial brought the sonic screwdriver, it's becoming apparent that the things that will become pure facts of Doctor Who at the moment are not going to be the monsters as much as they're going to be little details that flesh out the universe that is inhabited by the intrepid crew of the TARDIS.