Evan took the presenter up to the podium and showed him... Clearly Showed him how to press the button to advance the slides. Green is forward, Red is back. That should not be a problem for a Doctor. So, right off the bat... he is pushing the remote... not the button.. just the frame of the remote.. So I had to stand directly behind the bottom of the screen and peek through a 1/8" crack for 32 slides and try to see him attempt to push the button so I could tell Rob to advance the slides. Evan and I had to both watch closely in case one of us saw it before the other.
So, it took the Evan, Me, Rob, and the doctor to advance each slide.