Disclosed is a digital broadcasting receiving apparatus configured such that software served to control the behavior of the apparatus is divided into two pieces of software: a small piece of dedicated software (a) served to control a tuner and a large piece of software (b), i.e. main software, and that when the apparatus is switched on, the software (a) is first activated to perform received frequency setting, and in parallel with the receiving processes of the tuner, the software (b) is activated and executed. The apparatus can reduce the time required for a user to begin to watch images and listen to sounds after the apparatus is switched on.