ViaScience also has a great playlist on the 'story' of quantum mechanics. I don't have much background in the field or physics in general, but the presentation and explanations in the series are (to the degree possible) followable and an incredible example of straight-forward, no frills, presentation with excellent visualizations. There are long digressions into the actual math and equations as well, though if you're just interested in the history you can skip those. Simply as a story of problem solving and imagination the story of quantum mechanics is fascinating in its own rite.
https://www.youtube.com/playlist?list=PL193BC0532FE7B02C