Immortality (CSI: Crime Scene Investigation) the Las Vegas Crime Lab, noting that, should Sara reject the promotion she is going to be offered, Catherine will accept it in lieu of her former colleague. The series ends with the newly promoted Sara, upon hearing a recording of Grissom confessing his love for her, sailing from the Port of San Diego with Grissom. Off-screen, Sara resigns, and Catherine is hired as lab director. Scenes were filmed to explicitly depict the transition, though they were cut from the aired episode. A second deleted scene, featuring Catherine and her daughter, was also deleted. Catherine informs Lindsey that she should
CSI: Crime Scene Investigation Hall, and California State University, Los Angeles. While shooting took place primarily at Universal Studios in Universal City, California, Santa Clarita's surroundings had proven so versatile, "CSI" still shot some outdoor scenes there. "CSI"'s theme song was, since the last episode of season one, "Who Are You", written by Pete Townshend with vocals by lead singer Roger Daltrey of The Who. Daltrey made a special appearance in the episode "Living Legend", which also contained many musical references such as the words "Who's next" on a dry-erase board in the episode's opening sequence. In certain countries, to avoid music licensing fees,