Have this receiver is now replaced by the Inverto Scena 5 because he brought some quirks with it: 1: function not all USB devices 2: portly EPG 3: Receiving weak tuner, you should have a very good set antenna system, came out on top 80 cm Mirror Up 4: switching times are from 1 sec-turvy My colleague has the same model and does not have any problems, despite the latest Firmware.Möglicherweise the scatters in the production are too great.