Thanks for your message. But just so you know, I support US products and customers. And from what I can tell, this model is for Australia. (Correct me if I'm wrong.) So if you want the most accurate information, here's the Samsung Australia portal for support on that product: http://www.samsung.com/au/support/model/PS50B850Y1FXXY
Hope this helps you!
Whilst watching a DVD the TV "picture" menu pops up randomly on my Samsung TV Series 8 50inch (PS50B850).