Fantastic idea! 
And for images, Dhamma Doodles are just so apropos. 
And…
EBT-Sites rely heavily on examples. If we had an image for each example, then the video could show the image of the example when the example shows up in the sutta. So if “root of suffering” occurs in the current segment, then show the associated image. Our goal is to have at least one example phrase in all key suttas. Alternatively, images could be indexed by Pali phrase so that videos could be generated for all languages.
Video and You-Tube in particular are highly effective teaching tools. I actually personally prefer You-Tube to Wikipedia, which I rarely use except for looking up people in the news.