Chicago's WGN news team made a pretty glaring mistake Friday morning, when they reported that a small plane had CRASHED in the middle of the city.
They showed footage of the wreckage and speculated about what happened for a few minutes . . . until someone in the control room finally told them a plane HADN'T really crashed. It was just a set for the NBC series "Chicago Fire".
(--Gawker.com has the video. Search for "Chicago News Station TV Show Plane Crash." They find out it's a TV set around 1:28.)