My recommended book isn’t specifically about Australian television but it includes a chapter on Australia:
The Universal Eye by Timothy Green, published in 1972 (but still widely available used and in libraries), is a lively journalistic account of the television landscapes of various countries and continents by a British author and provides a wonderful time capsule of that era almost five decades ago.
The book has chapters on: the United States, Canada, Latin America, Eurovision (the pan-European TV exchange run by the EBU, not just the song contest), the United Kingdom, West Germany, France, Italy, Spain, Scandinavia, the Netherlands, the Soviet Union, Eastern Europe, East-West television propaganda, the Arab world and Israel, Asia (including detailed looks at Thailand, India, Hong Kong, and the Philippines), Japan, Australia, Africa, and the future of television (which discusses the advent of cable, satellite, and videotape).
Here’s a typical excerpt about TV news in the Philippines:
“In the early evening ABS-CBN run a two-hour programme called Patrol which is really just a public noticeboard for the city of Manila. All kinds of local titbits turn up. Insurance agents are advised that their exams have been postponed. Boy scouts are told where to report to a jamboree. Payment is offered for 500 cc of a rare type of blood urgently required to help a fourteen-year-old boy suffering from bone cancer; anyone who can offer a transfusion is asked to phone the studio immediately. Even photographs and descriptions of several children missing from home in the slums of Manila are given. Patrol calls itself ‘the public service programme that makes a city move’ and it outranks the imported Bonanza in the ratings.”