Granted i used the words 'Lois, Brian, Stewie and Family Guy' in the short 12 second video.
The Program I used, which is part of Youtube and adheres to Google's rights, made all the animation themselves.
Like the pacifist i am, i deleted the video and acknowledged Fox's letter. But what surprises me even more, whats the point of advertising on Youtube 'Create your own animated video'. I wonder how the 12 -14 year olds on youtube are going to react when they get a message saying 'LAWSUIT'.
Either way, the video has been deleted and I hope we're in the clear.