Hitting for the Cycle - S11-E18
Continuity mistake: Series 11, Episode 18, "Hitting for the Cycle": At the very beginning of the episode they are talking about the cycle while looking at the board. The three main ones, Suicide, Accidental and Homicide, are together on cards with a space above and then two more cards. The scene then goes out to show the CSIs again, and there are now four cards grouped together on the board.