We petition the discrimination of racism on t.v and not radio

Discrimination against racism on television and not radio. if people aren't allowed to say racial comments on t.v in front of children and others against racism then why not get rid of it on the radio were it is aired everywhere too they are OK to say racism comments on radio and not t.v it is not far to ones who have made racial comments and get discriminated and in trouble about it why them but not the ones who sing racism IR have racism in their music