Phase Rotation & Sequence Demonstrated with Oscilloscope

In this video I explain 3 phase rotation and sequence, not by using a sequence meter, but by explaining the theory and showing the phase offsets using an oscilloscope.
All explanations I have seen failed to explain if there is a true L1, which there isn't. There are 3 wires, and 6 different combinations of hookup order. 3 will work for clockwise, 3 will work for counter-clockwise. There are no mixed connections possible.