I'm sure a lot of you know this, but the use of the photo from JFK's assassination in Rose refers to the fact that the first episode aired the day after the assassination.
In the earliest outlines for the show, the character who evolved into the Doctor was only a supporting character.
And a personal one - when I was working in a London bookshop in the early 80s, Tom Baker came in one time. I can confirm he really is a loony (in the nicest possible way

)