There are two different versions of the episode. The original version was filmed (with the original series cast) in 1989 as an ordinary episode for Season 3 but it was not aired until Season 4, when several cast members had changed. Therefore, when it originally aired on ABC in January 1990, it was re-edited to be a "flashback" episode with returning cast members telling the story to the new Season 4 characters about what happened the year before. When the episode aired later during syndication and on streaming services, the original version of the episode was shown, with the added scenes featuring the Season 4 cast edited out.