When you push a button on one of your remote controls at home, a short burst of infrared light is emitted from it (normally from the top at the front of the remote). This short burst of light contains information about the button you have pushed. When this light reaches your source device (sky box, Apple TV etc) it is interpreted and the function of the button you have pushed (stop, play, pause etc) will be performed.
Sky HD and Sky+HD boxes freezing, locking up, powering themselves off etc are not uncommon. A quick google search will reveal just how many people suffer from this occurrence.
Their connection to other devices is in most cases not the cause of the Sky box fault.
In order to resolve this issue, HD Connectivity’s experience is that a full Sky system reset is the best medicine. Instructions on how to do this can be found here: Sky box full system reset
