I think it's a great idea by Heal. A game during the day (very captive audience) and one at night too.
I don't know how exciting everyone elses X-mas days are but when I visit my dad's then mum's I and my brother are in agony at the shit on TV. My dad has Foxtel and we were sitting there watching world series poker for hours straight, 30 mins okay. Until the step-mum realised Ben-Hur was on one of the other channels, I was like "Krusty wants out!"
Yes not everyone is into basketball especially the NBL but it would be live sport vs the other garbage on, a huge captive audience who can't escape and would be great exposure for the NBL, even if it didn't get huge ratings it would at least remind a sizeable chunk of the population the NBL is still chugging along.