The 4077th consisted of two separate sets. An outdoor set in the mountains near Malibu (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, although there were changes made to the positions of several tents for the TV show. 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 helicopter pad required using the ranch).