WARNING! This post contains some spoilers!
(it also contains usernames from another forum, as this is pretty much a copy-pasta of my post from there.)
Starts off slowly, but you know there was somthing going on with YANA from the start, buliding all the way untill you see...
SPOILER wrote:
That watch! Same as the one from Human Nature & Family of Blood.
And then your like, oh, he's not is he, oh shi...
I also liked the refencess to early Who episodes, including...
SPOILER wrote:
Among the sounds in Professor Yana's head, are the words and laughter of earlier incarnations of The Master.
Wyvern wrote:
"I am The Master"... menaces Jacobi.
I think it would have been nice to have a whole episode worth of Jacobi-nastiness, but I think the sacrifice will be worth it for two episodes of John Simm nastiness.
Because electrocuting someone in the face wasn't bad enough?
What I saw there was the introduction of a Master who can potentially be the Doctor's "mirror". If they get it right, I can see this working as well as the Pertwee/Delgado Doctor and Master. Two sides of the same coin.