The term 'CLASSIC MOVIE THEATERS' can be summarized as referring to movie theaters that have been around for a long time and are known for showing classic films. The acronym RKOS (4 letters) is often used to refer to these theaters, which stands for 'Repertory, Revival, and Specialty' theaters. These theaters typically show older films, foreign films, independent films, and other films that may not be available in mainstream theaters.