An engineer of Sun Hung Kai Centre and officers of Tourism Commission fine-tune a search light installed on the rooftop of the building.
Officers of Tourism Commission fine-tune the FM radio transmission system on the rooftop of Hong Kong City Hall for the broadcast of the new soundtrack of "A Symphony of Lights".
An officer of Tourism Commission and a technician conduct a test of the lighting systems of the buildings participating in "A Symphony of Lights" using a specially developed computer software at the show control office.
