Glossary

The technical terms used by the television industry, manufacturers and stockists when talking about the switch to digital can be very confusing. This glossary is designed to help demystify the jargon.

If there are terms that you’d like explained, but they aren’t listed below, let us know!

High Definition (HD)
Picture - The Australian Government has decreed that HD can be broadcast at a number of resolutions, beginning with 576p, stepping up to 720p and finally 1080i. The ‘p’ stands for ‘progressive’, which just means the lines are refreshed in one pass, rather than interlaced. HD picture is more stable and potentially has more detail.

Sound - Most programs will have Dolby Digital 2/0 sound, which is a slight improvement on MPEG sound. Both are better than analogue sound because neither suffers from interference. It’s possible to broadcast surround sound (5.1) with both SD and HD, and if you’ve got the right equipment to play it you’ll get a very similar experience to watching a DVD with surround sound. However, not all programs are made or broadcast with surround sound — it’s usually restricted to movies or special events.
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