Hello NCteacher, met you over on a Carnival thread - perhaps someone will correct me - but I think it is only Meraviglia, Grandiosa, that Class ship, that have The Carousel Theatre at back of ship that have shows you pay for. Seaside, Seashore, etc., do have a venue back of ship with a variety of evening entertainment that does not have a cost. The lounge area is also very nice for a quiet indoor place to read, etc. If on Mera and want to attend show it is less expensive if you book prior to cruise.