I have a Q6DT 55 inch television and I keep getting random alert/notification sounds. It's driving me insane! I have tried calling Samsung twice, the notification alerts and the sounds in expert settings have both been turned off. On my last call, the Samsung tech remoted into my tv and tried to help, the final answer was that the sound is a normal part of the tv. This can't be right, the tv makes the sound when I turn it on and also at random times when watching a show. Any help would be appreciated.