I liken it to film grain. Very light film grain makes videos easier to watch, one of the early complaints of all digital cinemas was that they were too "crisp"

I liken it to film grain. Very light film grain makes videos easier to watch, one of the early complaints of all digital cinemas was that they were too "crisp". None of the CRT presets are what I particularly like, but I've got it customized to an extent that IMHO it is super easy on the eyes.