From the DIS site:
Disney's Spirit of Aloha Dinner Show is located at Disney's Polynesian Resort in the Luau Cove located just off the beach in a covered, open-air theater. Please note that show will only cancel for temperatures falling below 50 Degrees.
The show is hostessed each evening by Auntie Wini, who has invited the whole neighborhood for a celebration to welcome home one of the local girls that has been away. The Aloha Dinner Show features music and dances of the cultures of Tahiti, Samoa, Tonga, New Zealand and Hawaii, which will be presented while guests dine on a feast that is inspired by the flavors of Polynesia.
The themed island feast is served family-style, and will feature chicken drumsticks, pork, fresh catch of the day, Polynesian Island rice, fresh sauteed seasonal vegetables, dinner rolls and a Volcano Dessert specialty. If you have special dietary requests they will be honored with a 24 hour advance notice by the guest. Beverages will include bottomless beer, wine, tropical rum punch, sodas, coffee and tea. Other alcoholic beverages may be purchased from the full bar. Dress is casual and shorts are permitted at this show.
Shows are presented every Tuesday through Saturday at 5:15 and 8:00 p.m.
So, if you want this show and you made an ADR for 'Ohana you are at the wrong place.