1. Night mode: no problem turning off at night, but doesn't turn back on in the morning.
2. Art mode: does not brighten during the day.
My TV is in the living room that gets plenty of light but it's also in a bit of a recessed space on top of a black cabinet. There are no obstructions around the light sensor.
After some experimentation and playing around with it, I noticed during the day that if I shine a light directly at the light sensor, it will wake the TV into art mode. Likewise shining the light makes the art mode brighter. Removing the light you can see it dim again.
So looks like the features technically work but unfortunately the light sensitivity isn't high enough. Since everyone will have their TV setup in different environments, some being brighter or darker, we need Samsung to provide an option to configure the light sensitivity in the same way that motion sensitivity can be configured.
Night mode is completely useless on the Frame, I'm usually a big fan of Samsung, but they honestly majorly dropped the ball. Night mode is a necessity, I don't see how Samsung could possibly think people would want the Art Mode to stay on all night in a dark room, as it ruins the "art" effect and just turns it into a glowing TV. If people wanted that they'd spend 1/2 the price on a good television and buy a Chromecast.
The settings on the ambient light sensor are way off. My TV turns off in a medium light room and doesn't turn on unless it's very bright. This just doesn't make sense for a product that boasts itself as an "Art peice". It should only turn off when the room has almost no light (i.e dim enough that you couldn't see a picture on the wall) and it should turn on at that same level. The dimming should also be aligned with that.
As it stands today, this is an expensive mid-range TV with a unusable feature.
I wish I would have read this forum prior to purchasing the 75" as I am experiencing the same problem with night mode/sleep mode/shadow on sensor and TV constantly turning off. I have 2 skylights and 5 extremely large windows in the room so the only time it is dark in the room is at night. Only way I can get out of night mode for 60 seconds is to shine a flashlight on the sensor at any point during the day. Has anyone had any luck solving the issue other than turning night mode on/off everday? Would be nice to return the TV altogether as the only reason we got was for the art
