hi all.... we've been on 15 cruises, mostly Celebrity but also Princess & RCI.... this will be first time on Norwegian ! I'm trying to clarify the main dining and entertainment protocols.... although dining is "freestyle", (anytime ?), I've read it's highly recommended to make reservations ? we like to share a table with others and prefer to have the same table / wait staff each evening.... is this correct ? also, I recently read you need to reserve for entertainment ? does that mean the main theatre shows ? finally, how far in advance are you able to reserve this stuff ? cheers