Let his be recorded in history, from my faliable memory. In the old Parliament House in our Federal capital Canberra, the microphones used to pick up interjections from various members of various parties when a politician was on the floor speaking. This made for very good entertainment at times. This was back in the days when Radio National was dry and dusty and there were gongs during the news and ABC local radio was compelled to carry Parliament (and cricket) on the airwaves. At times the interjections could be very cutting, or just really amusing.
I can't remember the exact timelines now but once the new parliament building opened, it had very directional microphones broadcasting what the politician was saying on the floor of the house, but not the interjections from other politicians. That is, the mikes would only broadcast what the pollie was saying because he or she was talking directly to the microphone. Good idea to keep the public ignorant of what was really happening in parliament........in theory.
But Houston, we have a problem, the problem being that politicians like to perform when they are speaking in the house, especially during question time. They like to look around. They like to turn their heads to address their speech to a particular member. All this was picked up by the old microphones, but not by the new microphones, so a politician speaking on the floor with head turning etc would keep going off mike and we radio listeners missed what they were saying in a direct speech from the floor to parliament.
I must say, it was a bit of a laugh. Perhaps best described as a feeble play with early technology. A laugh yes, but serious too.
Some 30 years later, it still sticks in my mind and why? It was shocking attempt at censorship of what was happening in Parliament. Unfortunately, even though it was after the ABC reign of the very conservative Sir Talbot Duckmanton, I believe our ABC was complicit in this censored broadcast of parliament.