I hope this question was not in this thread before and if so, sorry for double posting! In the option menu of the 4308 there is the option called LIP SYNC which you can put ON or OFF. I know that lip sync troubles are differences in the audio and picture but would like to know WHAT the denon exactly DOES when enable lip sync in the menu. And shouldnt this option supposed to be under the AUDIO menu and not the VIDEO menu where it is now? Is on or off recommended?