I can see why someone might be interested in a video, but IMO even if it did exists it wouldn't be as helpful as one might think. The range of what the skill in question might look like is pretty vast given differences in various rules sets and the players at different tables. My personal GMing style is usually some version of PtFO, but it looks pretty different across games and groups. The other variable is, of course, me - different GMs have different styles and strengths and weaknesses, and their individual implementations of PtFO will differ, to some larger or smaller degree, on what their existing GMing style is. I put PtFO into practice based almost entirely on the written info in various PbTA games combined with some reflection on my personal style and how I thought it might work best. After that it was an iterative process of reflection and tweaking.