I'm having a problem with viewing youtube videos on my Priemere XL which is set to 1080i output only. TV is a 52" Samsung 1080P. Don't know if the problem is video settings or some other problem. What happens is while viewing a video the sounds doesn't drop but the picture will go black for a period of time and then return. Replacing the video often has the same dropout point. Seems to sometimes related to a scene change during the video. But not always.