This video, https://www.youtube.com/watch?v=QwzmoSnX-SI&index=29&list=PL-aPY9kwDtN257QBLYNyxh0QkP79lZ75G, can also be seen at https://www.youtube.com/playlist?list=PL-aPY9kwDtN257QBLYNyxh0QkP79lZ75G.