The HDTV revolution changed the world of television
forever.
The older SDTV standard was only ever intended for screen sizes up to 32”, meaning SDTV images were blurry and lacking in detail when viewed on larger screened LCD and plasma televisions. The HDTV standard was introduced to rectify this problem.
This article will explain the difference between SD and HD content while detailing how to set up your HDTV to get the best from it.
The difference between SD and HD
Traditional CRT televisions used to work by projecting an image made up of hundreds of thin lines onto a glass screen. The human eye would fill in the gaps between these lines giving the impression of a fully formed, fluid image.
These CRT televisions used to project 480 horizontal lines to display an image. This amount of information was adequate to show a smooth and detailed picture on 32” CRT televisions but it was inadequate for the larger screen sizes afforded by plasma and LCD television sets.
To rectify this problem, the two HDTV standards of 720p and 1080p were introduced. 720p uses the equivalent of 720 horizontal lines to draw a picture while 1080p uses the equivalent of 1080 horizontal lines. This increase in the number of lines allowed for significantly more detailed images to be displayed on HDTV sets.
Unfortunately, the introduction of this new standard meant that all existing content had to be upgraded to HD to make use of the full capabilities of HDTVs. While older 480 line content can be displayed on an HDTV, it is significantly blurrier than 720p and 1080p HD content.
Watch HD content
HD content needs to be inputted into an HDTV to make the most of its increased clarity. This content is available from a few difference sources.
Blu-ray, a disc based physical media, quickly replaced DVDs due its ability to playback movies at HDTV resolutions. Blu-ray offers the best quality HD content available today.
Over time, HD television channels started to be rolled out, too. The BBC was one of the first to release an HD channel but the other UK based television companies soon followed their lead. Sky’s HD service is amongst the best available in the UK: no other HD service is able to match the amount of HD content available to watch on Sky HD.
Finally, HD content has become increasingly popular on internet streaming services like Sky Go. HD content is transmitted directly to the HDTV through the internet giving a quality picture that makes full use of the increased clarity available on HDTV sets.
Make sure to use one of these three sources of HD content on your HDTV to ensure the best picture quality possible.
Use the right cables
The increased data requirements of HD content facilitated the roll out of new cables capable of transmitting an HD image. While older analog cables were capable of carrying a basic HD signal, they were soon phased out in favour of HDMI cables.
Make sure to use an HDMI cable to connect HD enabled devices to your HDTV.
The older SDTV standard was only ever intended for screen sizes up to 32”, meaning SDTV images were blurry and lacking in detail when viewed on larger screened LCD and plasma televisions. The HDTV standard was introduced to rectify this problem.
This article will explain the difference between SD and HD content while detailing how to set up your HDTV to get the best from it.
The difference between SD and HD
Traditional CRT televisions used to work by projecting an image made up of hundreds of thin lines onto a glass screen. The human eye would fill in the gaps between these lines giving the impression of a fully formed, fluid image.
These CRT televisions used to project 480 horizontal lines to display an image. This amount of information was adequate to show a smooth and detailed picture on 32” CRT televisions but it was inadequate for the larger screen sizes afforded by plasma and LCD television sets.
To rectify this problem, the two HDTV standards of 720p and 1080p were introduced. 720p uses the equivalent of 720 horizontal lines to draw a picture while 1080p uses the equivalent of 1080 horizontal lines. This increase in the number of lines allowed for significantly more detailed images to be displayed on HDTV sets.
Unfortunately, the introduction of this new standard meant that all existing content had to be upgraded to HD to make use of the full capabilities of HDTVs. While older 480 line content can be displayed on an HDTV, it is significantly blurrier than 720p and 1080p HD content.
Watch HD content
HD content needs to be inputted into an HDTV to make the most of its increased clarity. This content is available from a few difference sources.
Blu-ray, a disc based physical media, quickly replaced DVDs due its ability to playback movies at HDTV resolutions. Blu-ray offers the best quality HD content available today.
Over time, HD television channels started to be rolled out, too. The BBC was one of the first to release an HD channel but the other UK based television companies soon followed their lead. Sky’s HD service is amongst the best available in the UK: no other HD service is able to match the amount of HD content available to watch on Sky HD.
Finally, HD content has become increasingly popular on internet streaming services like Sky Go. HD content is transmitted directly to the HDTV through the internet giving a quality picture that makes full use of the increased clarity available on HDTV sets.
Make sure to use one of these three sources of HD content on your HDTV to ensure the best picture quality possible.
Use the right cables
The increased data requirements of HD content facilitated the roll out of new cables capable of transmitting an HD image. While older analog cables were capable of carrying a basic HD signal, they were soon phased out in favour of HDMI cables.
Make sure to use an HDMI cable to connect HD enabled devices to your HDTV.
Use
the right screen resolutions
It is important to set up your HD enabled content devices with the right screen resolution to ensure that they are sending an HD quality image to your HDTV.
Set the screen resolution of your content device to 1080p, if possible. This will ensure that the best possible picture will be fed to your HDTV.
Properly configured HDTVs are able to produce impressively detailed and immersive images that older SDTVs could never hope to match.
Make sure to feed your HDTV set high definition content through the right cables at the appropriate screen resolution to get the best picture quality possible from your HDTV.
It is important to set up your HD enabled content devices with the right screen resolution to ensure that they are sending an HD quality image to your HDTV.
Set the screen resolution of your content device to 1080p, if possible. This will ensure that the best possible picture will be fed to your HDTV.
Properly configured HDTVs are able to produce impressively detailed and immersive images that older SDTVs could never hope to match.
Make sure to feed your HDTV set high definition content through the right cables at the appropriate screen resolution to get the best picture quality possible from your HDTV.
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