Frequently asked Questions

What is the difference between Progressive and Interlaced Scanning? - If you are going to install a home theatre, or any other audio visual equipment, you may have heard the terms 720i, 720p, 1080i or 1080p. Simply put, the ‘i’ stands for Interlace scanning and the ‘p’ for Progressive scanning. This is the way in which images are displayed on the television screen, i.e. lines of the frame are drawn in sequence. Understanding progressive- and interlace scanning will help make you make a more informed purchase when considering HDTVs. With Progressive scanning (also referred to as non-interlaced scanning) lines are filled from the top of the screen, one after the other (line 1, 2, 3,…) downwards, whereas with Interlace scanning, every second (even or uneven lines) are filled from top to bottom (1,3,5…). Once the screen has been filled the scanning method starts over but now fills the empty lines (2,4,6…). Obviously this process repeats with every new frame. Interlaced scanning is what regular CRT televisions made use of and the resulting picture is less clear than on progressive scan. A progressive scan HDTV will display images with more clarity, less flicker, no artifacts as well as offering clearer and faster results when upconverting to higher resolutions, ie. 720p to 1080p or 4K (4 x 1080p mainly for 3D movies). Another advantage of using a progressive scan display over an interlaced display is that if you are capturing still images from video, the images will be clearer, with no artifacts, when compared to interlaced. Anyone looking for a high-end home theatre installation with good picture quality should only be looking at progressive scan HDTV models as there are numerous advantages over interlaced models. Though more expensive, a progressive scan HDTV will definitely make for a better viewing experience for television and video.

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What are the costs of a custom home cinema installation?

How do I choose between Plasma, LCD or LED?

What is the difference between Progressive and Interlaced Scanning?

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Everything you need to know about custom home cinema technology and installations explained in our frequently asked questions.
frequently asked questions