Hisense Laser TV User Manual page 20

If the top of the image is narrower than the screen, then use
the wrench to rotate the left- and right-back feet of the Laser
TV clockwise, until the left and right borders of the image are
parallel with the screen borders. Next, move the projector further
from the screen to fill the image to screen width. If the back feet
are already at their maximum height, rotate the the center-front
foot counterclockwise.
Rotate the back feet clockwise Rotate the center-front foot
counterclockwise
After you've completed adjusting the image position, rotate the
left and right front feet to the same height as the center one to
make sure the TV sits stable.
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