Full episodes of "CSI: Crime Scene Investigation" are available at CBS.com. The website also has video clips of highlights from the current season, photographs of the cast and behind the scenes information about the show.
"CSI: Crime Scene Investigation" is about forensic investigators in Las Vegas who solve crimes by examining evidence. The pilot episode premiered on CBS on Oct. 6, 2000, and the two-hour finale of the 15th season aired on Feb. 15, 2015. Spinoffs include "CSI: New York" and "CSI: Miami." Both shows were cancelled after 10 seasons. The fourth program in the franchise, "CSI: Cyber," premiered on CBS on March 4, 2015.