Like many people, you may be filled with a burning curiosity to know what makes an RPTV function. Well, it’s pretty much done with smoke and mirrors. (Just kidding – if there is smoke coming out of your rear projection television you have a serious problem!)

How it works is this: a video image is projected via a projectors lamp inside the box, then a system of lenses and mirrors redirect the picture onto the internal surface of a translucent screen.

When this technology was first introduced, CRTs (cathode ray tubes – responsible for making traditional television sets so bulky) were used, and it worked quite well. The only problem here was that the tube made the case very heavy and, typically, a floor standing cabinet was required to house it.

So, as screens grew in size, and the industry began to adopt the new, wider 16:9 aspect ratio (the ratio of width to height), those old CRT TVs gradually became replaced by newer models which deliver high quality performance in light, compact cases.

Rear projection TVs have built in high definition capability nowadays. This is an extremely important point – they are equipped to handle everything high-definition broadcasting and discs can throw at them. And let’s be clear about this – High-Definition TV will deliver wide-screen pictures in much more detail and clarity than we are accustomed to from traditional TV. As well as tuners for analog and cable television – not to mention the ability to receive unencrypted digital cable signals without requiring a set-top box – HD tuners are included in all modern rear-projection TVs, which means they can take full advantage of all the television innovations which will be with us soon.

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