A tuner device includes tuner circuits, wherein, each of the tuner circuits includes a radio frequency amplifier amplifying a radio frequency signal of a transmitted broadcast wave, a frequency mixing circuit performing frequency conversion for the transmitted radio frequency signal, and a local oscillation circuit transmitting a local oscillation signal to the frequency mixing circuit, wherein the local oscillation circuit includes, at least, a reference signal source, a first frequency divider, and a second frequency divider. The local oscillation circuit is arranged to generate a local oscillation signal having a local oscillation frequency, and forms a difference between local oscillation frequencies of the tuner circuits, the difference being generated when the tuner circuits receive the broadcast waves of the same frequency, greater than or equal to a predetermined value.