Dear All My name is Mark. I have been using many other product but at last I can be able to buy a Bang&Olufsen for myself. I have recently brought a Beovision 4-50 in ebay. The screen not come with anything. So I understand that to be able to open it will need the Beosystem 1 and IR control. So right now I have Beovision 4-50. the Beosystem 1 type