Provided is a digital broadcast receiving device (20) which can display a
high resolution image longer without burdening users with a cumbersome
operation. The digital broadcast receiving device (20) of the present
invention switches, based on vehicle information, between switching
thresholds by which switching is made between plural digital broadcast
decoders outputting different digital broadcast images from one another
in accordance with a reception state of digital broadcast waves. The
plural digital broadcast decoders include, for example, a stationary
reception decoder (200), which outputs a digital broadcast image for
stationary receivers, and a mobile reception decoder (201), which outputs
a digital broadcast image for mobile receivers.