There are two things that are very difficult to do when you are doing magic on television. The first is to make it believable. There are still a lot of people that think all magic is done as if they were watching an episode of Bewitched. The second is to make it intimate and fun for the viewer.
This routine does both. Ken was really fooled by this one and it is a routine that you can participate in at home (or on your device).
And the magic will work through your screen!