A personal computer provides a video signal to dual first and second displays, the second display remote from the computer receiving its video signal by telemetry instead of through a video cable. A video signal transmitter connects to the computer through a transmitter cable plugged into a computer display port. The cable from the second display that would otherwise be plugged into the computer video port is instead connected to a video signal receiver. The signal is then transmitted from the computer by the connected transmitter to the receiver connected to the second display. The second display may detachably mount to the back of the first display.