Allow me to disagree, Alan, most of us remember a "show and tell" by Defkalion.
That was done by video from a remote location. The machine was too large to move to the conference. That demonstration was poorly done and most people ignored it. As I said here before, they were given 20 minutes, and they used all the time blathering instead doing the demonstration. As I said, most attempts to do demonstrations of any sort have ended badly.
It turned out the whole test was bogus. See the Gamberale paper.
Researchers who wish to make a convincing case should use traditional methods. A good experiment explained in a well-written, well presented paper is what they need.