The TVX Viewer App is a great tool to view your working apps on Apple TV. In addition to the HTML5 Simulator that you can launch in MAZ Control, using the TVX Viewer App is a way to get a real sense of what you're building and how it functions and flows to your end users.
Tap the green Simulator button on the top left of the MAZ Control window to pull up the steps to download and access the TVX Viewer App for Apple TV for your TVX app.
Step 1: download the TVX Viewer App
Step 2: use an email address to login (any) and the access code provided to you
Step 3: in order to see new changes you make in real time, you'll need to refresh the app (open and close) to bring up the edits.