Typically, the term can refer to the process itself, the equipment used for the procedure (a 16 mm or 35 mm movie camera mounted in front of a video monitor, and synchronized to the monitor's scanning rate), or a film made using the process. Kinescopes were the only practical way to preserve live television broadcasts prior to the introduction of videotape in 1956. A small number of theatrically released feature films have also been produced as kinescopes.[citation needed]