“CSI”
William Petersen both starred in and produced CBS’ long-running crime drama “CSI.” His character, Gil Grissom, led the team that made looking at bodily fluids under a microscope cool for nine years before he left the TV world for the stage in 2008. His legacy lived on, though, with “CSI” running another six years before calling it quits. It also launched an entire genre of detective dramas, which now make up 100% (probably) of CBS’ lineup.