From what I remember its lounge type curved seating with tables more like a show lounge but with a proper stage.
Showlounge. Usually around 3/4 shows in there a week and a comedy act.
It also has an upper floor about 4 to 5 rows deep onto which backs the casino and gaming machine area.
It is a show lounge with seating downstairs and upstairs and a stage. I sailed on O.V in September to the eastern med and had a wonderful time. I cannot understand all the hype about it being like butlins camp and everyone in shorts baseball caps and football shirts in the evening. The ship during the day is obviously no different to the large luxury liners casual. People do dress in the evening smart casual just no ballgowns and shirts ties and jackets. It is self service in the majority of the restaurants but the selection is excellent and the food is wonderful. The only problem we found was the staff will try and push drinks onto you after all it is their job The James Martin bisto is worth a visit. The excusions are expensive but if you go to the reception desk in the village hall every evening at about 10 you will find a leaflet about how to go it alone for the following day they do not advertise the leaflet on board ship. I am sure you will have a fantastic holiday such a shame O.V leaving the UK market in 2010 they shall be missed. If you have any further questions feel free to ask.
It has lounge type curved seating round tables which is tiered so that you get a good view from every where. There are few pillars to obstruct. There are also raised tables at the back that you can stand at with your drink and there is a bar with seating behind that. The balcony upstairs (2 x spiral staircases within the theatre or reached from deck 8) also has tiered seating of the sofa type and the balcony has glass under the rail so that the stage is not obscured. There is a normal size stage the same as any theatre but it also has a large Apron in front which gives close up views of the artists and shows. I came back yesterday from the trip Crete to Barbados. Thanks OV - it was great !!!