Despite this being a beginner’s course, don’t be fooled. The more you put into it, the more you will get out of it. The intensity of the course is set by your level of commitment.
So, if you simply want a surface-level experience then the course episodes will be enough on their own.
But if you wish to get the maximum out of the course and understand how powerful the tools and techniques are, then setting aside at least 2-3 hours per session is recommended.
This will give you the bare minimum of time to watch the episode, understand and learn its content, as well as do the additional resource learning and the homework quests given to you.