Hi RWI,
Australian TV was converted to all digital many years ago, we did have a mixed bag of analog and digital previously converting from PAL B analog as compared to USA NSTC I think.
All signals are UHF now so basically line of sight, I live in a, by American standards a rural remote mountanous area, a local repeater supplies our free to air TV and we have about 45 or so picture channels and 18-20 digital radio feeds in our area.
There is some Govt charter I believe that guarantees to supply media into all areas other than extreme remote of which there is a lot here, 25 - 26 million population in a landmass the size of the USA Conus, say minus Alaska.
We have a horizontal signal however it does vary with some vertical around the country dependent on terrain I believe.
The stations are a mix of approximately 3:1 private corporate and independently run but tax payer funded non commercial ABC (Australian Broadcasting Corporation) 4-5 channels with a mix of British and Australian programming, SBS (Special Broadcasting Service) a unique service providing multi language news, movies and multicultural programming over 4 or 5 channels, due to Australia's highly diverse multicultural population,and NITV (National Indigenous TV) providing programming based around Australian 1st nations people and matters, but also Canadian/American 1st Nation and Maori,( New Zealand 1st nations programming) Pacific Islander etc.
Otherwise we have Stan and Netflix via telephone modem or satellite "Austar"which is a payment service.
The private media owned organisations run 3 major free to air multi-channel networks and provide commercial programming owned by international media organisations such as Murdochs's "News Limited" and the Packer press often delivering mediocre (IMO) reality/cooking. shows, current American shows, older repeat US sitcoms etc and often very Right conservative leaning news and commentry similar to USA commercial networks.
I have been unable to receive channels outside our repeater supplied ones probably due to line of sight UHF frequencies.
My club does have members who transmit pictures but I'm not one of them, I'm more an HF non contester who like to ragchew with DX and local amateurs.
all the best Ross