These screens may vary in the amounts of LED's. Or even light bulbs... There is a choice between coarse and more detailed 'bitmaps' renderings. Since it is a modular system, these single LED displays can placed in any length or number. They can be placed in line, curved, zigzagged or irregularly placed.
Story Line for low res led screens
Multiple low res screens as expandable module system
In stead of TV screens, simple monochrome low res LED modules could be developed to show the glyphs.