To provide a remote controller which gives a crime prevention function to a television receiver to perform camouflage for presence in home during prolonged absence, by conducting alternate iteration operation for turing on and off the television receiver.

The remote controller can be set to operate a television receiver 1 by remote control, wherein television receivers of many models can be used as the television receiver 1. In addition, the remote controller comprises an on-off control means 4 for transmitting to the television receiver 1 a control signal 3 to turn on and off the television receiver 1 by turns. The on-off control means 4 can be set so that an off-time length of the off-status adjacent to each other is different in an on-off change. Moreover, the on-off control means 4 can be set so that a plurality of off-states are repeated periodically as one cycle T.