Had SKY HD for about a month now and every now and again it misses about 2 secs of sound. It happens on what's being broadcast and what's been recorded, yet when rewinding to the same point and playing back again, the audio is there this time!?! Called SKY tech who said to turn off at wall, remove HDMI wait 2 minutes put HDMI back in and turn on again. As you'd expect this has done sweet F.A. for the problem. Anyone else having similar issues?