THIS IS A 7-MINUTE PREQUEL MINISODE TO THE DAY OF THE DOCTOR 50TH ANNIVERSARY SPECIAL CONFIRMING ONE OF THE MOST AMAZING SECRETS IN THE DOCTOR'S LONG, LONG LIFE. WATCH IT. NOW.
To everyone who felt spoiled, my utmost apologies. My thought that was since McGann literally shows up in the first 20 seconds of the 7-minute short, it couldn't possibly be considered a spoiler.
I also was afraid that some people might not understand how awesome this thing is if I kept the headline vague, which is the other reason I mentioned the 8th Doctor in the headline. At any rate, it's been changed.