@spacediver After long time of tinkering with this dilemma which gamma to use for which content and reading articles which didn't give straight answers (display gamma should depend on ambient light and for content creation should be lower than for its consumption...) I decided to take Buddha's "middle way" approach and added 2.2 to 2.4 and divided by two =) Since then I have no issues with gamma and it always look better than either 2.2 or 2.4, especially when gamma seems to change between scenes during one video. It always look just rigt. I recommend you give 2.3 a try Could you upload created profile? Also do you use gamut correction for videos? Trinitrons compared to reference have slightly different colors, especially on green hues and gamut correction fixes that nicely.