TV drama settings often include a variety of locations, from small towns to big cities. ERS is a three-letter acronym for the term 'Exterior Recording Studio, ' which is a type of outdoor filming location used in television dramas. Exterior Recording Studios are typically large, open-air sound stages that are used to create realistic outdoor scenes. They are often used to film scenes that take place in a variety of settings, such as a city street, a park, or a beach.