December 23, 2014

Christmas reading: HD resolutions explained

It's a confusing world, this HD lark. Someone just commented on a post from last month that the 720p picture quality on Now TV was inferior to the "1080' on Sky via satellite. That may be true for some content, but there are two "1080" definitions at it's debatable whether 1080i (which is what Sky is broadcast in) is better than 720p.
So for those not clear on exactly what's what in high definition, here's a link to Expert Reviews' neat summary of who's who with the ol' PQ:

http://www.expertreviews.co.uk/tvs-entertainment/8081/hdtv-explained-1080p-720p-4k-and-more

1 comment:

Humour Hive said...

A couple of tips for those purchasing a TV and unsure what resolution they are buying.
Most TV's have a sticker on the TV or box that states it is in High Definition (HD).
If it says HD READY, this means it is 720 pixels.
If it says FULL HD, this means it is 1080 (either 1080i or 1080p).

The reason you may want to know the resolution is mainly based on the size of TV you are getting. 720 can be just as good an image as 1080 as long as you get the right screen size. 720 is best for smaller screens up to 32/36 inch TV's, whereas 42 inch and bigger would benefit with a 1080.
If you try and get a cheap TV that is 720 on a 52 inch you will lose picture quality. Whereas paying out a lot of money for 1080 when the screen size is 22 inches is also a waste of money as the screen is too small to really appreciate the extra pixels, so the noticeable quality is hard to distinguish.

Finally it is also worth noting that the bigger the screen size, the further away you should sit from the screen. A 32 inch screen you can sit much closer to, to get the best viewing of the image, while a 60 inch screen is better suited to large houses as you would really need to sit a good 10 - 15 feet away from the TV before you are getting the best image quality they want you to view the TV at.

For the average UK living room a 32-42 inch TV is perfect for the distance the sofa is likely to be from the TV set. And the bigger you go, the more you want to avoid HD READY and go with FULL HD, especially over 40 inches.

Don't worry too much about 4K TV's because they are expensive, not very many manufacturers and virtually nobody is even broadcasting in 4K yet except the occasional show on Netflix, etc. But even those shows in 4K will require you to have a beefy internet connection to stream them before you even buy the TV.
And you could buy 4K to future proof yourself, but to be honest only the world cup final and a couple of Wimbledon matches have been shown in 4K to test the technology and is still a good 2 or 3 years before it will start to be broadcast in any regularity on a channel. It could be at least 5-7 years before it is as popular as HD channels are now, and by that time the price of 4K TV's will have dropped to a similar price as a HDTV is now, and you might be ready to upgrade again in 7 years time anyway.
Its also worth noting that although 4K is very futuristic to the consumer, its already been outperformed by an even bigger HD technology that is starting to appear at tech shows and that broadcasters may see the investment in 4K a little pointless if the new technology is as cheap and far more advantageous for them to broadcast, it may be that 4K may end up like 3D and be a short-lived fad that is soon forgotten about.
My advice, get a good quality FULL HD TV that suits the size of your living room. Invest in a Blu-Ray player that are really cheap now that makes full use of your new tv. Get a Netflix subscription and enjoy the next 3 or 4 years of entertainment to be had by that while 4K sorts itself out on whether it wants to be a dominant force or fades out into oblivion.