The trailer for this episode at the end of the preceding episode War and Love and the Whole Damned Thing (1988) featured a scene in which J.R. attempts to escape from the Harper house but is stopped on the stairs by a growling Rottweiler. Cally then tells him to come back to their bedroom. No such scene appears in this episode.
The title refers to the "gunfight at the O.K. Corral" in Tombstone, Arizona territory that occurred on Wednesday, October 26, 1881 mainly between the Earps and the Clantons. The event is the most famous gunfight in the history of the American West and has been often told in stories and movies.