Red Studios Hollywood, formerly Desilu Cahuenga Studio and Ren Mar Studios, is a rental studio located at 846 N. Cahuenga Blvd. in Hollywood, California, on premises that were formerly the home of Desilu Productions. It was first built in 1915 as Metro Pictures Back Lot #3, and has been used for a wide variety of film and television production, and the studio has been known by many different names.