Where is the QOS video?

After looking at some old videos, i remembered that Qain "promised" us a QOS video (http://youtu.be/597FScwIhnc?t=6m41s).

No such video is anywhere to be found. I was looking around to maybe find it hidden in some of your other router and networking videos, but I could not find anything. Am I just "blind", or was it indeed never released?