And one more thing before I go:
Emissive materials are not advanced enough.
1 - First of all they are not emitting light as they used to.
2 - We need to set the emissive strength with a slider and a value so we can go beyond 100%. setting it with color isn’t good enought as we might need a spesific RGB value and thus manually calculating say 11% of that RGB value isn’t going to happen.
3 - We need to be able to set an emissive material/image
Here a picture plane is shown next to a plane with a material where I sat emission to close to 50% gray. And that turns even the black parts of the image gray. It can work if I want to illustrate an old, worn projector image, but not ok if I want it to look like a modern OLED UHD TV 
Thanks for listening!