Here you can adjust the safety zone for the movie you are about to publish.
The black area represent the area outside the safety margin. Flash Demo Builder will resize the presentation to fit the blue area.
Type in the left, top, right, bottom value to adjust them.
Reset offset
To reset the offset to the default value
Note that each TV screen has its own safety margin so you need to experiment to find the right value. However the default value supplied by Flash Demo Builder is commonly used by large number of TVs.