Interesting bit: "have the option of selecting the original mono sound heard on the series' original television airings decades ago."
I hope this is accurate, as this would solve all of the audio errors which have bugged the crap out of me since the first DVDs came out.
I do wonder about this seamless branching thing. Some of the live action footage cuts to the new footage a few seconds earlier than it did with the original stuff. I wonder how this will effect the original versions?