Since the PKG6.2858 update I have a dimming issue with my Sony A1. The picture pre update was stunning, however since the update I am experiencing varying levels of brightness which has completely ruined ths set for me. Colours are lacklustre and mostly dim, a factory reset has failed to rectify the problem. It seems that a number of owners on the AVSForums are experiencing similar problems. Only hope that Sony bring out a fix but not holding my breath.