Tags: Television Season.
The thirteenth season of CSI: Crime Scene Investigation premiered on September 26 2012 on CBS and concluded on May 15 2013.In episode thirteen of the season CSI staged a two-part crossover with its spin-off show CSI: NY in which Gary Sinise marked his first appearance in CSI and as his CSI: NY character Mac Taylor; cast member Ted Danson subsequently appeared in the CSI: NY portion of the story.