Wow! Simply wow! I'm guessing that some of those things were probably intentional nods but some must have happened by coincidence but then I suppose it all goes to help show that all these years on Doctor who is absolutely the same show.
@jimthegallifrey Well, my memory seems to be good! When I find one of the double-take scenes, I make a screen print of it. I then go back to whatever the other episode was and take a screen print of that one as well. Luckily I do remember the rough areas where the scenes were, otherwise they would take a very long time to find! Answering the other question, some of the episodes have been watched more recently than others, but all of them have been watched within the last couple of years or so.
