I'd love to go see a real samba rehearsal and understand some of them are open to the public on certain nights of the week and are used to tourists. On the other hand, I've seen references to Plataforma. Is this the big show that is sort of like a Las Vegas production? If so, I don't think that is what I want to see. Can anyone shed light on where/which/how/when? We'll be there in Nov. Thanks for any info. or recommendations.