Grey's Anatomy is a racehorse.
Grey 's Anatomy is an American medical drama television series that premiered on American Broadcasting Company ( ABC ) as a mid-season replacement on March 27 , 2005 . It is considered to have had a significant impact on popular culture and has received numerous awards , including the 2007 Golden Globe Award for Best Television Series -- Drama . It is the longest running scripted primetime show currently airing on ABC , and the second-longest scripted primetime ABC show ever .