The Three Doctors is still my fave of the multiple Doctor stories. It also happens to be the first one that I saw. A friend who was our source of DW stories back in the day found out that we had not seen any of the other older Doctors, and promptly sat us down to watch TTD. (I love the whole thing still, and we're watching it this month at our local DW club as part of the continuing Three re-watch, so to speak.) I fell in love with the Third Doctor then and there, and he's been My Doctor ever since. :)

The extras sound lovely, so I'll put this on my list of DVDs to pick up soon.