Got this yesterday and watched the first disk last night.
It starts with a promo for Sherlock, which looks astonishingly unpromising. Won't be watching that. It is a sad commentary that a Twenty-First Century Watson can be a veteran of Afghanistan just as easily as a Nineteenth Century one could. Apparently, we don't ever learn, not even a little bit.
"The Eleventh Hour" has "in-vision commentary" with Steven Moffatt, and executive producers Piers Wenger and Beth Willis. I'm not wild about "in-vision commentary", I don't really feel we gain much from being able to see the people doing the commentary.
Apparently, the "fish fingers and custard" that we see the Eleventh Doctor eat was actually sponge fingers and cheese sauce, which still sounds pretty nasty to me.
Moffatt claims to be the first straight producer of Doctor Who since 1979. I think that's wrong, I'm pretty sure JNT didn't take over until 1980.
I didn't realize Arthur Darvill was older than Matt Smith.
There also a "Meanwhile in the TARDIS" additional scene in which Karen Gillan gets to overact her little heart out and Matt Smith gets to explain why the TARDIS looks like a police box.
"The Beast Below" does not have a commentary track, which is disappointing.
"The Video Diaries, Part One" has a brief bit from Matt Smith reacting to having filmed his first scene at the end of "The End of Time", and somewhat longer bits with Karen Gillan and Arthur Darvill on various sets.