I was living in Florida in 1982 which is when I saw Star Wars and Empire for the first time. I don't remember the theater(s) at all, but they are probably gone now- perhaps replaced by mega-plexes with stadium seating. I saw JEDI on opening day in '83 (also in Florida). I don't remember anything about the theater itself, all I remember is that it was a packed audience.

The AMC theater where I saw Empire SE has since been remodeled and turned into a huge hobby shop
(they tore down most of the interior walls and had to level all of the floors to remove the slopes). I think I also saw TPM there. I think I saw SW SE and Jedi SE at REGAL cinemas, but I'm not sure.