ABC has a bit of an advantage- they can use local commentators for
Perth, Adelaide and Brisbane matches; Alister Nicholson, Matt Clinch, Kelli Underwood and Joel Peterson call Melbourne and (I think)
Sydney games. Occasionally someone like David Lithgow or Dury Forbes does a match at Hobart or Canberra. Charlie King has called a few matches in Darwin.
Reminds me of hearing about Alan McGilvray calling ashes tests played in England from the abc studios in Sydney. Back in early 30's i think. He would receive cables describing play ball by ball and would commentate from those cables. He used a pencil hitting the desk as sound effect of ball hitting bat and the abc had recordings of polite applause from the crowd.
My we have come a long way in 80 years......or maybe not.