Doctrine stating that media content of broadcasts is subject to regulation
In broadcast law (particularly within U.S. law), the pervasiveness doctrine is the doctrine stating that media content of broadcasts is subject to regulation because broadcast radio waves are available to anyone and therefore "uniquely pervasive". In general, profanity and sex, or other adult material deemed "indecent" by a broadcasting authority, may not be broadcast outside of overnight "watershed" or "safe harbor" hours when children are unlikely to be awake. Material deemed "obscene" may still be prohibited at all times.