It appears he calibrated a 65″. I made the measurements on a 54″ prior to release of the 58″ and 65″. I wonder if its the same firmware version and sets are the same – as the User Manual is different for 50″/54″ and 58″/65″.
As the custom mode was almost dead on 6500K across the board, I am sure its not the meter.
But regardless, if calibrated in THX mode only, no way to do seperate Day/Night options.