Three Rivers is an American television medical drama that debuted on CBS on October 4, 2009, starring Alex O'Loughlin as an infamous transplant surgeon in Pittsburgh, Pennsylvania. On November 30, 2009, after just eight episodes had aired, CBS announced that Three Rivers had been pulled from their schedule with no plans for its return, and the series was later officially canceled. However, the series returned to the network on June 5, 2010, to air the remaining unaired episodes.