security surveillance, security control, and security fire, gas leak and burglar alarm communications systems comprising telephones, videophones, televisions, cameras, electrical wires and cables, electrical doorbells, electrical buzzers, batteries, electrical sensors, electrical detectors, electrical locks, blank video cassettes, blank CD-ROMs, video recorders, and voice activation, remote lighting, door control and appliance control apparatus; and pre-recorded video cassettes, audiocassette...