I did watch lecture 11 as it aired.

I watched most of lecture 11 as it aired. I have started to watch lecture 12. I really don't need to review lectures 1 or 2 again. I could watch lectures 4-10 again. That means I have about 8 lectures to watch again or 20 hours of watching. I have about a week to do this or eight days. I have no security work scheduled in this time. That breaks down to one lecture a day. I will complete lecture 12 today and watch lecture 3 on Sunday.