a series of scenes that make up a larger dramatic unit is called a
Act (drama) An act is a division or unit of a theatre work, including a play, film, opera, and musical theatre. The term can either refer to a conscious division placed within a work by a playwright (usually itself made up of multiple scenes)[1] or refer to a unit of analysis for dividing a dramatic work into sequences. The former use of the term may or may not align with the latter.
M*A*S*H (TV series) The 4077th consisted of two separate sets. An outdoor set in the mountains near Malibu, California (Calabasas, Los Angeles County, California) was used for most exterior and tent scenes for every season. This was the same set used to shoot the movie. The indoor set, on a sound stage at Fox Studios in Century City, was used for the indoor scenes for the run of the series. Later, after the indoor set was renovated to permit many of the "outdoor" scenes to be filmed there, both sets were used for exterior shooting as script requirements dictated (e.g., night scenes were far easier to film on the sound stage, but scenes at the chopper pad required using the ranch).