I'd say you're right Moffo... if Ch 9 can't show live sport then theorically, it gets offered to another FTA network. Sounds great but unfortunately it doesnt work that way in practice.
I think the Cricket broadcast you refer to was about 5 or 6 years ago when Australia were playing the West Indies in the West Indies... correct me if you're thinking of another series...
Anyway, most pundits thought this would be a history making Test series as Australia finally looked a chance of winning back the Sir Frank Worrell Trophy for the first time in a generation.
But Ch 9 refused to play it. This was despite it being on late at night and in no way a conflict with prime time.
Firstly, the ABC was offered the broadcast and then Channel 10. In the end, it was a a community TV station, Channel 31 who transmitted the crappy signal. I think Ch 10 eventually took on some of the broadcast as well. Anyway, we got to watch it but it was never a sure thing and the quality of the service was questionable.
There was talk of Ch 9 working behind the scenes tomake it difficult for other broadcasters and Ishould imagine it was a nightmare to get organised. Its no surprise that no other FTA broadcaster has made an effort to fill in ever since.
To continue with the point, if Ch 9 refuse to broadcast a live session for a Test match in Australia, according to the anti-siphoning laws, it should be made available to another FTA broadcaster...but again, this would be difficult. Ch9 have all the gear and all the access. The other broadcasters do not have the same access and even if they did, it wouldnt be cost effective to simply broadcast a single session of play.
So I guess, Ch 9 have the anti-siphoning laws by the short and curleys.
IMO, it makes more sense to de-regulate the broadcast rights and create open competition between FTA and Pay TV.