It really is bigger on the inside!
I really hope this turns out to be a crackerjack episode, because this story is going to be remembered by fans and become series cannon — until another story picks up the premise of the looking at the TARDIS’ interior.
One thing does concern me: In all the publicity I’ve seen for this episode, no one has mentioned the Sontaran patrol that took off into the depths of the TARDIS in the Fourth Doctor (Tom Baker) classic “The Invasion of Time” and was never seen again. Are those clones still inside?
Perhaps we’ll find out tonight at 8 o’clock on BBC America…