Ha, I was wanting to see some of that too, I also never saw anything on the Apollo-Soyuz mission but maybe it was just me (it was in the description).
I was pleasantly surprised by this series. Even though I already knew much of it, I learned plenty and the footage was pure gold. Well worth the wait.
EDIT: Now to watch "In the Shadow of the Moon".
I've been excited to see that one but my dvd player is busted-so I have to hook up the pc to the tv.