Once principal photography is complete, producers coordinate tasks to begin the video editing. Visual and digital video effects are added to the film; this is often outsourced to companies specializing in these areas. Often music is performed with the conductor using the film as a time reference. An editor cuts the various pieces of film together, adds the musical score and effects, determines scene transitions, and assembles the completed show.
Conversations may be filmed twice from different camera angles, often using stand-ins, so one actor might perform all their lines in one set of shots, and then the other side of the conversation is filmed from the opposite perspective. To complete a production on time, a second unit may be filming a different scene on another set or location at the same time, using a different set of actors, an assistant director, and a second unit crew.
Pre-production begins when a script is approved. A director is chosen to plan the episode’s final look.
Many scripted network television shows in the United States are financed through deficit financing: a studio finances the production cost of a show and a network pays a license fee to the studio for the right to air the show. This license fee does not cover the show’s production costs, leading to the deficit.
Although the studio does not make its money back in the original airing of the show, it retains ownership of the show. This ownership retention allows the studio to make its money back and earn a profit through syndication and DVD and Blu-ray disc sales. This system places most of the financial risk on the studios, however a show that is a hit in the syndication and home video markets can more than make up for the misses.