What is digital tv? The Digital Broadcasting Authority can tell you that. They have a decent FAQ and a reception locator which is a great help to see what channels are available in your area.

You may have heard of Personal Video Recorders with harddrives that can record TV shows for playback whenever you want with the ability to skip ads. You may of heard these cost a lot of money. Did you know you can get devices for your computer that also let you record to your computer's harddrive? Did you know you can build your own complete media centre. Check out the DVB Owner's Discussion Forum and DTV Forum Australia for more information. Just remember that a computer is not an appliance, if you don't want to put in effort, then buy a PVR.

Some highly recommended places to buy your digital TV stuff are DigitalNow and HyperReality. If you are interested in buying a device for your computer then be sure to research the following: BDA drivers, VideoRedo, WebScheduler, Antenna designs.