What Revelation is saying is that when you are on television you have to be aware of who you're performing for. The way they edit the show is in a way that does not allow you to reconstruct the effect no matter how many times you repeat the video.
But the people he performs for are experiencing a Drawing Duplication effect...just not in the exact same way we are...so yes, it is dual reality. You can't perform it the same way he did but that doesn't matter because people will still describe the same effect ("I drew something and he knew what I drew")
Impression Pads are what you need to research if you want to do this effect.
I've watched a few of your videos too, Benji! Solid stuff. But I've actually been looking into impression stuff, but can't seem to decide which to get. Mind helping me out?