Here's a three-part piece on ABC Radio News from 1969, just after the split the radio network.
http://www.youtube.com/watch?v=k_lal-65_nc
http://www.youtube.com/watch?v=vzfR-SUjZlU
http://www.youtube.com/watch?v=LcUEBHyDEvs
Some of the equipment will look familiar to people of a certain vintage.
And I'll bet they don't use a news reader and two people in the booth to put a newscast on the air any more.
cArtie