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Buying a HD TV.......


Suprash

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Use pricerunner.co.uk for good price comparisons. Play.com also do some really good deals on electrical stuff now.

 

I ended up going with the Sony Bravia 40" V3000 LCD telly, got it for £750 a few months back, support all the 1080p, 24 frames etc stuff, and has 3 hdmi ports to connect all the good things like home cinema, blu ray player etc :)

 

Standard definition doesnt look great, but when the PS3 and Blu ray are connected the image is amazing, even the upscaled 1080p DVD's look great. I think it was a good middle range set.

 

My brother picked up the 46" X3500 Series model in the US for £1300, over here it costs around 2500. Gutting.

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My requirements were:

- 1080p (for Blu-Ray and PC usage)

- 37-40" size

- reasonable SD picture (I state only reasonable, because I knew that a 1080p LCD is about the worst kind of TV you can buy for watching SD TV)

- 3 HDMI inputs

 

After a LONG time searching, reading avforums, etc., I have just bought the latest Toshiba model.

 

£600 on play.com.

Buy through Quidco and you get 4% or so back (eventually).

 

http://www.play.com/Electronics/Electronics/-/318/404/-/5320394/Toshiba-Regza-37-37XV503-505DB-HD-1080p-Freeview-Widescreen-LCD-TV/Product.html?searchtype=genre

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Gav I dont see the point in buying a 720 screen if Sky are broadcasting in 1080i, and I will be using blueray which is true 1080p, your TV then is letting the picture quality down......

 

Oh and my mate said that the TV he will get for me will have a contrast rate of 33000:1, it looks like this TV would cost about a grand in the shops and he reckons he can get it for me for about £600........

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From what I've read, there are very few true 1080i/p definition TVs out there as they need xxxx*1080 pixels.

As those that are available are extremely expensive.

 

My chap said my screen will be a true xxxxx * 1080.......this is one thing Im not scrimping on, this TV will probably be my TV now for about the next 5 to 8 odd years, so screen quality is something I wont to try and nail right........

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Gav I dont see the point in buying a 720 screen if Sky are broadcasting in 1080i, and I will be using blueray which is true 1080p, your TV then is letting the picture quality down......

 

Oh and my mate said that the TV he will get for me will have a contrast rate of 33000:1, it looks like this TV would cost about a grand in the shops and he reckons he can get it for me for about £600........

 

At that price point, it is a nobrainer really :). I got 720p purely because I couldn't see the difference at 40" and at the time the 1080p's where almost twice the price. Don't regret it, however I see your point ;)

 

Would say though, that I do prefer plasma over luk-da-tuv

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No, not as I undestand it.......720 progressive is still less then 1080 interlaced........

 

Interlaced and progress are two different things

 

a 720p image has 720 lines

a 1080i image has 1080 lines..

 

The manner in which the image is generated is different, 720p will do the full screen in one pass, whereas the 1080i does two screens of 540 with a single line offset, ie pass 1 will do 1,3,5, and pass 2 does 2,4,6...

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Interlaced and progress are two different things

 

a 720p image has 720 lines

a 1080i image has 1080 lines..

 

The manner in which the image is generated is different, 720p will do the full screen in one pass, whereas the 1080i does two screens of 720 with a single line offset, ie pass 1 will do 1,3,5, and pass 2 does 2,4,6...

 

Two screens with 540, not 720 (2 * 540 = 1080) ;)

 

Anyway, 720p creates a clearer picture than 1080i...

 

720p versus 1080i

Some broadcasters use 720p50/60 as their primary high-definition format; others use the 1080i standard. While 720p presents a complete 720-line frame to the viewer between 24 and 60 times each second (depending on the format), 1080i presents the picture as 50 or 60 partial 540-line "fields" per second (24 complete 1080-line fields, or "24p" is included in the ATSC standard though) which the human eye or a deinterlacer built into the display device must visually and temporally combine to build a 1080-line picture - in Chase Herrmann type display.

To get all 1080 interlaced lines to appear on the screen at the same time on a progressive high-definition display, the processor within the HD set deinterlaces incoming video by either weaving together two 540-line fiels, or by doubling lines in each field, effectively converting fields to frames. The first deinterlacing method is used for static scenes, the second one is used for scenes with motion. Cheaper TVs always use line doubling, while more expensive TVs use complex algorithms to analyze motion between two fields. Because of the deinterlacing, 1080i video with static scenes has more vertical than 720p video, while the resolution in moving scenes is lower because of field doubling.

While 1080i has more scan lines than 720p, they do not translate directly into greater vertical resolution. Interlaced video is usually blurred vertically (filtered) to prevent twitter. Twitter is a flickering of fine horizontal lines in a scene, lines that are so fine that they only occur on a single scan line. Because only half the scan lines are drawn per field, fine horizontal lines may be missing entirely from one of the fields, causing them to flicker. Images are blurred vertically to ensure that no detail is only one scan line in height. Therefore, 1080i material does not deliver 1080 scan lines of vertical resolution. However 1080i provides a 1920-pixel horizontal resolution, greater than 720p's 1280 resolution.

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Interlaced and progress are two different things

 

a 720p image has 720 lines

a 1080i image has 1080 lines..

 

The manner in which the image is generated is different, 720p will do the full screen in one pass, whereas the 1080i does two screens of 720 with a single line offset, ie pass 1 will do 1,3,5, and pass 2 does 2,4,6...

 

Interesting... so what yields best results or is it a matter of opinion? My tv does both and I assumed 1080i is better.

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