For my game I ended up using 3D widgets with some random vectors and rotators to give the bulk of the “text” on a 1 second timer. Cost is not too high around 3ms for 12 “working” monitors which is Meh~OK and It will allow me later to implement more functions into the monitorBP.
It would’ve been great if Media Framework worked in packaged games but for me (4.8) after build :
the video file gets corrupted and opening it crashes the editor
the 32bit windows game crashes if a level contains it
displays as the default grey squares material on a 64bit windows, otherwise it works like a charm 