Hello

Does anyone know if this TV has been reviewed or calibrated?
The presets are lacking for me and whilst I settled currently on an energy saving mode, I've noticed the backlight can fluctuate at random.
Also the sound presets, anybody know of a decent combination of Bass and Treble with Clearsound or incredible surround on or off?
Finally will easylink being switched off alter my connected HDMI devices in any way other than the TV recognising when I switch them on?
All help gratefully received.
Thankyou
Chris.