From 2010 Australian free to air (from your antenna) television broadcasters will start turning off the analog transmissions that you have been getting for years, in favour of the digital transmissions that started a few years back. No need to panic, as Sydney is not scheduled to cut over till the second half of 2013.
There is a bunch of information available from the official government website.

If you are confused and would like help working out what you need to get the most from digital TV, you can call or email LovemyTV. With proper planning you can change over in plenty of time and get the great new features that digital TV offers.
What is TIVO
Put simply, TIVO is a Digital Set Top box with a built in hard disk drive to record TV on. Like a VCR with no tapes. Unlice a VCR, TIVO can learn what shows you like, actors you like or series you like and record them for you. Regardless of the TV station they are on or the time. TIVO can also be used to hire movies from Blockbuster Video, play games and listen to selected radio broadcasts.
TIVO is probably one of the must useful and easy to use devices to come to TV in Australia since..... umm... TV.
If you are considering getting a Digital TV Recorder, You should seriously consider TIVO if you want a device that is easy for the whole family to use. The price point is in line with other quality products and there is no ongoing subscription fee.
TIVO does need to be connected to the internet and if you want to download movies, you need to consider the internet plan you have. But it is all easy and if you would like some help, give us a call.