I have long suspected that with the growth of online video as a communication medium, that ballroom style presentations will start to evolve into documentary style videos. It doesn't take much; create a ballroom style presentation, add voice or music, click File/Save as Movie, and upload to YouTube.
Of course, the greater your skill, the more professional-looking you can make it. Xplane, the company founded by Dave Gray, has always been at the forefront of visual thinking. Yesterday they released a video on leadership, in conjunction with the Leadership Initiative at the Harvard Business School. It's a fine example of a Ballroom style video presentation.