I was on a 747 in the middle of the Atlantic when a message came over the tannoy about turbulence. It caused all of the video equipment to freeze and had to be reset - the EMC engineer with me told me it was an EMC problem on the aircraft, not what I wanted to hear at that moment
PA always has priority over IFE, its a legal requirement for the video system to pause during a PA. Nothing to do with EMC
