In a receiver, immediately after the channel-up key or channel-down key is
operated, the receiver 1 starts a tuning motion of tuning in to a program
which is being broadcast by the virtual channel number corresponding to
the operation. When the channel-up key or channel-down key is operated,
if it is in the middle of tuning in to a channel corresponding to a
previous operation, the tuning motion is stopped, and a tuning motion of
a program, which is being broadcast by the virtual channel number
corresponding to the operation of this time, is started.