You are correct. It is Dr BRAD Osgood. The good Dr's material (but not, unfortunately, his attempts at humor) is excellent, but the recording quality leaves much to be desired. Along about the fourth or fifth lecture, the cameraman goes to sleep and an entire board of equations goes permanently missing. He is also a bit late panning to the current board in some of the other lectures and several lectures have such problems with lighting that only the chalked material is-- barely--visible. But you can follow it quite well just from the audio and the notes.