Natta, Scouts advice is pretty good with respect to Australian domestic TV, the adds will send you insane, let alone the programming.
But as you asked, its possible but not a cheap proposition and its networked, not 7,9,10 as in capital city. It probably be of benefit to others to have bit of a rundown searchable on the forum, so here goes.
There are 3 options, Foxtel, Aurora and Vast. Technically all 3 require a card registered at an address in Australia. For Foxtel and Vast there are no cracked cards and never likely to be. Cards can be found for Aurora but will expire late next year.
You are entering the realm of Aussie big brother tv, heavily controlled by the government for the benefit of the country tv networks and media barrons. In fact to the benefit of everyone but the Aussi viewer.
Dish: To receive these signals you need a fairly big dish, huge by local indovision and Australian foxtel standards. Big dishes are expensive anywhere in the world, good quality ones even more expensive. These signals are KU band, the accuracy of the curve is very important, the surface must be solid not mesh. Here we are normally restricted to dishes made up of pressed steel petals rather than high spec ones formed from a single sheet of aluminum.
2.4 meter dishes can be obtained and will work most of the time, these are the minimum. The KU band signal resonates in water and thus suffers from water absorption in the signal path to your dish. This shows up as signal drop outs through heavy cloud up to a total loss of signal in wet season rains. 3.2 and 4 meter plus dishes don't suffer so much but you have gone from a 10juta to 40 juta dish.
Decoder:
Foxtel provide this with the subscription, but only in Australia and they retain ownership of it. I don't think they will willingly supply signal to Bali as it breaks international communications agreements, although you see expat pubs often have it on. I assume registered down south the sent up. 7,9 and 10 may be available in the Foxtel package depending on where they installed it. I believe recently the control and encryption was upgraded to marry the card to the Foxtel supplied decoder box, and also stop card sharing between multiple receivers (dreambox etc)
For Aurora (free to air) you need to by your own irdeto decoder, and get a Optus issued smart card. They will enable this for the channels in the area you register it providing you can prove you live there. This must be in the bush in a recognized location which receives no terrestrial tv signal. You can get cracked cards for this but the whole signal is being replaced by a new secure system at the moment and most likely be off air by the end next year. 7,9,10 are represented here by country broadcasters who are basically aligned with them. ie, WIN with 9, GWN with 7. ABC and SBS in most timezones.
For Vast, the new free to air service,you need to register the card in Australia, either east or west. The signals are HD, this system is still not fully operational but there's lots of channels working, Aurora and more. Again 7,9,10 are represented through regional broadcasters. The receivers are made by only one company and cost 270 AUD. You can register them somewhere that has terrestrial TV but you will only be enabled for ABC and SBS. They are not likely to enable your decoder if you tell them its in Bali but who knows?
Here is a starting point to google from
https://www.myvast.com.au/channels
The there one last thing to consider, the one of the 2 co-located satellites supplying the signal (optus C1) is pretty old, there is an Optus C10 in preparation that will launch (I think) sometime next year. The signal we receive in Bali is not supposed to be here, the birds are designed to beam the signal only over the desired footprint around the mainland. There every chance any new satellite will have a sharper footprint and effect what spillover we get in Bali. Possibly the small lobe designed in to service Christmas Island may be what saves the day.
Finally to avoid confusion, "Australia Network" as you see on Indovision and Telkom vision is freely available but carried on totally different international satellites, requiring different receiver setup and dish about 1.8mtr, all up about 1 juta for a system.
Check the forum adds, Esther has some gear advertised thats does Aussi TV. And the only local satellite/TV dealer I have met so far who has a clue about KU band gear is the one in Jln Nagajayata near Seminyak.