A universal remote control device is programmed by determining layout properties of an existing remote control device that must be replaced by the universal remote control device. The land-clearing device has a pusher assembly with telescopically extendable actuator arms that are operated by a hydraulic auxiliary source accessible from the interior of the earthmoving machine. A liquid crystal display device is formed with a liquid crystal layer between a first substrate and a second substrate configured via a seal, wherein the liquid crystal display device includes electrodes on the liquid crystal layer side of a non-display region of the first substrate andor the second substrate, and the potentials of the electrodes are substantially the same.