Unlike the IBM, SAM isn't moving these to only be on their site. At least not yet.
I know they have members only lectures as well (their Virtual Assembly), but these are the ones that have been publicly available.
Ran'D Shine & Francis Menotti and Lindsey Noel & Marcus Eddie
The comment section is a little weird in that it is one long comment section that includes all the lectures as opposed to each lecture having their own comment section.