I think you're talking about Philip Guo's lectures. They are great! Here's a playlist: https://www.youtube.com/playlist?list=PLzV58Zm8FuBL6OAv1Yu6AwXZrnsFbbR0S

I think you're talking about Philip Guo's lectures. They are great! Here's a playlist: https://www.youtube.com/playlist?list=PLzV58Zm8FuBL6OAv1Yu6AwXZrnsFbbR0S https://www.youtube.com/playlist?list=PLzV58Zm8FuBL6OAv1Yu6A...