These exclusive rights are not absolute. Berne permits countries to "determine the conditions under which the rights . . . may be exercised" by national legislation. This includes the imposition of compulsory licensing in appropriate circumstances. The cable and satellite licenses under sections 111, 119, and 122 of the Copyright Act are examples of national laws that "determine the conditions under which the rights" of copyright owners in the content of broadcast television signals "may be exercised.