premise: "Requiem" is the seventh episode in the fifth season, and the 101st overall episode, of the American crime drama television series "NCIS". It first aired on CBS in the United States on November 6, 2007. The episode was written by Shane Brennan and directed by Tony Wharmby.
hypothesis: "Requiem" aired on another station before airing on CBS.
reason: The statement says it first aired on CBS. I tricked the bot by not mentioning it airing on a specific other station.