Having bought an oled55b7v last week, I'm now trying to get it set up correctly. I spent my budget on the TV itself so I'm not going to be paying a professional calibrator to set it up for me unfortunately! I found the Android app THX tune-up, which I'm running on my phone and using its chromecast feature to display the test patterns on the TV. It helps tune some fairly basic settings, but I'm mainly interested in ensuring that I'm not losing dark or bright detail, and getting colours such as skin tones as accurate as possible, which is what the app seems to help with. I have a couple of questions regarding this. They apply to any similar tuning method and to any TV really, but here seemed as good a place as any to post this. 1) Since I'm using the chromecast, the changes I make apply to that particular input, and not to, for example, live TV or onboard apps such as YouTube or Netflix. Given this, is there any value in tuning using this method, and then simply applying the exact same settings to these other inputs, or is it really only useful for tuning the chromecast input itself? Say I plug in a different device to the HDMI socket I've just tuned, will the settings be good for that device too? 2) The "colour" and "tint" tuning rely on using my phone camera with a red filter applied, and then changing the setting until the pattern on screen matches the colour of the red background. Does this process assume that my phone is displaying colours correctly? Thinking about it now, I guess not because if the two colours are out by the same amount they would still match. Can anyone confirm? 3) The description in the app for the "tint" setting suggests that most TVs have tint roughly correct out of the box, so it may not need to be changed. Also, all recommended settings for this TV that I've seen say tint should be left at 0. However I found that the colours matched most precisely when I set tint to Green 11. Has anyone else found that tint needed adjusting for them? Thanks for all your help on this.