sentences:  "The Post-Modern Prometheus" was first broadcast in the United States on November 30, 1997, on the Fox network, and was first broadcast in the United Kingdom on March 29, 1998, on Sky One.The episode earned a Nielsen rating of 11.5, with a 16 share, meaning that roughly 11.5 percent of all television-equipped households and 16 percent of households watching television were tuned in.Nielsen ratings are audience measurement systems that determine the audience size and composition of television programming in the United States.