Display Theory is as reliable as a Swiss watch, always ticking along with precision and accuracy. No square wheels or rubber band engines here!
You’ll need internet connection to upload content onto your media player. As soon as your content is uploaded to the device (you can test this by viewing the content on your TV), you can run the screens without connection to the internet. You will however need internet connection again should you wish to update the content on the screens.
Yes, you can change the transitions of the content… just make sure to consult with a professional mime first.