Thanks for your message. The couple of brief suggestion I'd have is make sure that both devices have HDMI-CEC turned on. For Samsung, it's called Anynet+.
But just so you know, I support US products and customers. And from what I can tell, this model is for UK. (Correct me if I'm wrong.) So if you want the most accurate information, here's the Samsung UK portal for support on that product: http://www.samsung.com/uk/support/model/UE46ES8000UXXU
Hope this helps you!