In case you don't already know these, here are a few of the Youtube channels that
I can wholeheartedly recommend, not just for their recent videos but also they backlog.
List in no particular order.
Two Minute Papers, enthusiastic computer science paper summaries.
Kurzgesagt, fantastically animated science topics.
Stuckman's film reviews.
Welch's Intro to Machine Learning covers both the math and the hands on implementation.
Nerdwriter, more about film.
CGP Grey, fast-paced knowledge about things you never thought you wanted to know.