Disclosed a digital-broadcasting receiving apparatus including: a scramble judgment member, a decode judgment member, a first registration member to register the sub-channel as a viewable channel when the decode judgment member judges that the broadcast data can be decoded, a second registration member to register the sub-channel as a viewable channel when the scramble judgment member judges that the broadcast data is not scrambled, a judgment member, a channel registration control member to register the sub-channel by the first registration member when the judgment member judges that the scramble judgment does not accord with the decode judgment in all kinds of the scramble judgment data, and refers to one of a plural kinds of scramble judgment data and registers the sub-channel by the second registration member when it judged that the scramble judgment obtained by referring to the one scramble judgment data accords with the decode judgment.