Node-RED complete VIDEOCOURSE

I would like a multi-class Node-RED tutorial, at first with the most basic concepts (from zero) and increasing the level with each class, starting to beginners and finishing with a professional mastering of the subject, to learn and understand completely how to use Node-RED and become proficient of the subject. The minimum total duration of the course with all classes must at least 8 hours. I need good quality on the recording and the edition of the course. Also, the content has to be original, to be able to use it without restrictions. We will sign a contract of copyrighting cession before ending the project.