The ambient mode is still a new thing that seems to be used in conjunction with the smart things app

But by far the best thing about this TV is the PICTURE--I can't get over how incredible 4K video looks!

Also it says in the smart things app that they (samsung) are still experimenting with

Coming from a late generation plasma we've had a hard time finding anything better, but after years of waiting for either LCD or OLED technology to catch up to plasma we've finally found the next best thing - the Samsung QLED Q9FN.4K HDR Movies / Blu-Ray, Streamed content

Whole thing unsettling, never buy Samsung product or from this seller again!!