The show premiered on ABC on September 24, 1970. The first season was filmed at Paramount studios using the single-camera method and a laugh track, utilizing the same apartment set seen in Paramount's 1968 film version. Klugman and Randall both expressed displeasure with using a laugh track without a live audience. Marshall also disliked the practice; theatre veteran Randall particularly resented the process of having to wait several seconds between punchlines in order to allot enough space for the laughter to be inserted. The production team eventually experimented with omitting the laugh track altogether for Season One's 21st episode, "Oscar's New Life" (laughter was subsequently added for syndication in order to maintain continuity). By the second season, ABC relented, and the show was then filmed with three cameras and performed like a stage play in front of a live studio audience, with laugh sweetening completed during post-production.