The Broadcasting Act 1989 has a part called Repeals. This part is empowered by section 89(1) of the Act, which you can read about in the related section. It lists laws that are no longer valid. These laws include the Broadcasting Act 1976 and several amendments to it. You can find the full list of repealed laws in this part of the Act. The repealed laws are from different years, including 1977, 1979, 1981, 1982, 1985, 1986, 1987, and 1988.