remote control systems for lighting and appliances comprising controllers, plug in appliance modules, wall switch modules, wall receptacle modules, wall dimmer modules, and screw-in lamp modules; appliance control modules, lamp control modules, controllers for use in the remote control of appliances and lights, remote control units for the remote control of PC home automation systems and of home entertainment systems, radio-frequency-controlled wall switches, motion sensors, programmable timers, telephone responders for use in the remote control via telephone of appliances and lights, thermostat controllers, universal radio-frequency and infra-red remote controls for controlling PC mouse functions and the operation of TVs, stereo, stereo audio systems, DVD players, cable TV converters, and DSS systems; remotely controlled lamp switch modules, remotely controlled lamp dimmer modules, remotely controlled chimes, infra-red remote audio-video senders for the wireless transmission of audio-video signals to a remote TV receiver, wireless video senders for connecting audio-video components, intrusion alarms and wireless security systems comprising door/window sensors, motion detectors, alarms and sirens; computer software for programming PCs, and computer interfaces for use with a PC in the remote control of appliances and lights