Ian 'Macca' McNamara has been presenting AUSTRALIA ALL OVER for 26 years. It is ABC Local Radio's most consistently listened-to program, with an average weekly audience of 2,000,000.Ian 'Macca' McNamara has been presenting AUSTRALIA ALL OVER for 26 years. It is ABC Local Radio's most consistently listened-to program, with an average weekly audience of 2,000,000.