Don got a DMX controller for stage lighting. Leo says that DMX is very popular with TV broadcasting and stages because it's a computer network. He shouldn't use it with pyrotechnics, though, because errors can occur. There's also some limitations on distance. YouTube has a ton of great videos on how to use DMX.
Don says he has trouble understanding how to set it up because there's so many channels. Leo says that they are divided by color, intensity, etc. That's why there are multiple channels. Leo says that programming the lights will require a board that will assign numbers and light patterns to the channel.