Just found one that looks good from MIT OpenCourseWare https://www.youtube.com/watch?v=jTS5ZmrrzMs&list=PLUl4u3cNGP62bMZx9A3DR7V5myByt48CC
Just found one that looks good from MIT OpenCourseWare https://www.youtube.com/watch?v=jTS5ZmrrzMs&list=PLUl4u3cNGP62bMZx9A3DR7V5myByt48CC