Originally Posted by johnbre
I am running all signals through an AVR. If I switched that over to the Blu-ray input (as I've done), would that cause the TV picture mode to switch?
If you run all devices into the AVR and run one HDMI to the TV, then your calibration of the Movie mode would remain the same for that HDMI input (on the TV) regardless of whether you're watching cable, satellite, blu ray, etc. But this has nothing to do with your problem, that something is changing the Picture Mode from Standard to Movie, etc.
So, I don't understand what you mean by "switched that over to the /blu-ray input (as I've done)" . Do you mean simply selecting the blu ray to watch on the AVR? If so, then that would make no difference to the TV calibration in movie, as I mentioned above. Or do you mean that you had a blue ray on a particular TV HDMI input, calibrated the TV, then removed it and connected the AVR to that input? If so, that shouldn't change the calibration of that input, and, regardless, is still a totally different issue than something mysteriously changing the PIcture mode.
Is the blu ray new? If so, is that when you started noticing the problem? Does it (and the TV) have HDMI-CEC turned on?
Is there some eco setting that is turned on that switches the set back to a different default Picture Mode? Sleep timer? Is the AVR new? Is there a sticking button on the remote?
Most important question: Does it switch picture mode while you are watching, or after some device has been turned off, or back on the next day? Or after you change channels?