We had an open house late last year to officially open our Pleasanton, CA office. Instead of only offering free booze and food (we did have free booze and food) we also had a number of huge flat screen TVs playing screencasts of Revit demonstrations.

In this screencast, I was just rotating around a model. The neat thing is that there was a 3d solid extruded model of the same building sitting next to the TV.