i just got back and had late seating i was able to see all the parades , and shows that i wanted to the offer two times for most shows just check the daily compass schedule for exact times. you must try to see the quest game show ( adults only) the paraides happend at 10:30 which where great to. hope this helped .
Most of the time, they have 2 shows for you to view. I always take the late seating and go directly to the show afterwards. Never a problem. Every now and then, they will have a special time for the late diners and have something prior to dinner.
The only drawback is having a late dinner and then trying to eat at the chocolate buffet or the luau on deck right after dinner. You should go to them, even though you won't be hungry.