Sure, no doubt, a video can sometimes make things much clearer. A great example (to me) is this [1] for example. I had understood from the old illustrations that I was supposed to imagine something like that, but video makes it incredibly clear.

The actual net impact of screens in classrooms, however, appears to me to be extremely negative, and I think learning outcomes bear that out.

[1] https://www.youtube.com/watch?v=wrwgIjBUYVc