All the issues are sporadic, here they are listed.
*Both remotes will not work (aside from holding down power button to force the TV to shut down)
*Will not power off properly (goes a dark grey instead and LED light stays on)
*Will not connect to an HDMI receiver (screen just goes grey or goes into a loop where it flashes the info on and off)
*Will not display a game or app on PS3 (screen just goes grey, sound will still play through the receiver though)
*Info will not disappear from screen
*Some settings options will just revert me back to the home screen
I will reiterate that these issues are sporadic and 9 out of 10 times the TV behaves as it should but when it does happen it can be extremely frustrating (I missed the AB's haka at the World Cup final because of it). All issues can be resolved initially by fully shutting the TV down.
Model number is KD-55X8500C