HD Resolution
 

Hi,
Perhaps this query should go to an HDTV group if there is one, but as Sky
offer the only service, this seems an appropriate group.

Forgive me if I'm wrong here but most of these new so called HD TVs are
1380x768 pixels.

Sky's HD service broadcasts in both 720p and 1080i.

Can a 1380x768 TV interpret the 1080i signals and display them properly?

If it can only cope with the 720p signals, then is that enough of an
improvement on the current UHF 625 lines to be worth the bother?

Am I missing something obvious here?

Kev Lewis.

HD Resolution
 

"Kevin Lewis" wrote in message
...
Forgive me if I'm wrong here but most of these new so called HD TVs are
1380x768 pixels.

Sky's HD service broadcasts in both 720p and 1080i.

Can a 1380x768 TV interpret the 1080i signals and display them properly?

Yes

If it can only cope with the 720p signals, then is that enough of an
improvement on the current UHF 625 lines to be worth the bother?

Am I missing something obvious here?

Current TV is interlaced.
Not all those 625 lines are used.
So it is 576i, hence 1080i is near twice the vertical.
As it is 576i is isn't valid to compare to 720 progressive and say that 720p
is only 144 move lines than 576i.

And you have to compare the horizontal.
PAL is normally thought of as 720, wheras HD is 1920 or 1280 (though the
source material may not always be filmed in that resolution)

Trust me, the difference is clearly visible even on a 1024x768 set, which
many plasma sets are for example.

Loz

HD Resolution
 

Thanks,
It sounds like a 1360 x 768 set + Sky HD will be worth it then.

Although I reckon it might be worth waiting until after Crimbo for both to
get them cheaper.
Manufacturers see the World Cup time as the biggest demand for new tellys.
So any deals they are offering now should be better in Jan.

Kev.


"loz" wrote in message
...

"Kevin Lewis" wrote in message
...
Forgive me if I'm wrong here but most of these new so called HD TVs are
1380x768 pixels.

Sky's HD service broadcasts in both 720p and 1080i.

Can a 1380x768 TV interpret the 1080i signals and display them properly?

Yes

If it can only cope with the 720p signals, then is that enough of an
improvement on the current UHF 625 lines to be worth the bother?

Am I missing something obvious here?

Current TV is interlaced.
Not all those 625 lines are used.
So it is 576i, hence 1080i is near twice the vertical.
As it is 576i is isn't valid to compare to 720 progressive and say that
720p
is only 144 move lines than 576i.

And you have to compare the horizontal.
PAL is normally thought of as 720, wheras HD is 1920 or 1280 (though the
source material may not always be filmed in that resolution)

Trust me, the difference is clearly visible even on a 1024x768 set, which
many plasma sets are for example.

Loz

HD Resolution
 

"Kevin Lewis" wrote in message
...
Hi,
Perhaps this query should go to an HDTV group if there is one, but as Sky
offer the only service, this seems an appropriate group.


Actually I believe Telewest has been offering HD since March this year - and
in London it's available as test transmissions on Freeview.

HD Resolution
 

Thus spaketh Kevin Lewis:
Thanks,
It sounds like a 1360 x 768 set + Sky HD will be worth it then.



It will do for now until you can get a decent screen, at the right price.


--
Items for sale: www.dodgy-dealer.co.uk
3p/min & 1p Texts, EasyMobile, For £5 airtime bonus contact via:
www.southeastbirmingham.co.uk

HD Resolution
 

On Tue, 06 Jun 2006 18:13:01 GMT, "{{{{{Welcome}}}}}"
wrote:

Thus spaketh Kevin Lewis:
Thanks,
It sounds like a 1360 x 768 set + Sky HD will be worth it then.



It will do for now until you can get a decent screen, at the right price.

What would you call a decent screen?
--

Julian Richards

www.richardsuk.f9.co.uk
Website of "Robot Wars" middleweight "Broadsword IV"

HD Resolution
 

Thus spaketh Julian Richards:
On Tue, 06 Jun 2006 18:13:01 GMT, "{{{{{Welcome}}}}}"
wrote:

Thus spaketh Kevin Lewis:
Thanks,
It sounds like a 1360 x 768 set + Sky HD will be worth it then.



It will do for now until you can get a decent screen, at the right
price.

What would you call a decent screen?


One that has a resolution of 1920 x 1080.

HD Resolution
 

Kevin Lewis wrote:

Forgive me if I'm wrong here but most of these new so called HD TVs are
1380x768 pixels.
Sky's HD service broadcasts in both 720p and 1080i.
Can a 1380x768 TV interpret the 1080i signals and display them properly?

It can, with a bit of technical trickery that introduces its own
problems.

Ideally you should buy a "Full HD" set that has full native resolution
of 1920x1080. There are some of these around now, with many more to
come.

Even if your set is only 1380x768 (the minimum to qualify as "HD
Ready") you will still see a great improvement.

--
Digibox problem? : A reboot solves 90% of these.
The Sky Digital FAQ: http://tinyurl.com/8vef5
UK TV overseas: http://tinyurl.com/6p73
BBC reception questions? ; http://www.astra2d.com/
Fed up with on-screen logos? : http://logofreetv.org/
----
Only the truth as I see it.
No monies return'd. ;-)

HD Resolution
 

On Wed, 07 Jun 2006 00:12:34 +0100, Mike Henry
wrote:

In , Julian Richards
wrote:

On Tue, 06 Jun 2006 18:13:01 GMT, "{{{{{Welcome}}}}}"
wrote:
It will do for now until you can get a decent screen, at the right price.

What would you call a decent screen?

For me it'd be one that displayed a picture with miniscule overscan, not
the whopping amounts that some of these flatscreens have. Proper 16:9
not 15:9 ratio screen. Able to display 1080p, and 1080i properly -
ideally without deinterlacing, or failing that very convincing
deinterlacing such as on this one:
http://www.frontniche.co.uk/products/tft/46inch_tft.htm

That one currently isn't quite at the right price, so I'm waiting :-)

Unfortunately that screen doesn't appear to have HDMI or DVI with HDCP so is not
HD-ready.

--
Nigel Barker
Live from the sunny Cote d'Azur

HD Resolution
 

Nigel Barker wrote:

http://www.frontniche.co.uk/products/tft/46inch_tft.htm

That one currently isn't quite at the right price, so I'm waiting :-)

Unfortunately that screen doesn't appear to have HDMI or DVI with
HDCP so is not HD-ready.

Indeed, it is somewhat better than "HD-ready" (a badge which only guarantees
that you will get a picture if you plug it into a HDMI source)
HDMI is based on the DVI spec (which does not allow enormous cable lengths).
SDI and HDSDI take what comes directly out of the mpeg decoder and transmit
it over long distances. They are broadcast quality standards.
You can get SDI set-top boxes (even a Pace Sky+ box) and DVD players.
HDSDI equipment is just around the corner.

Jim Peterson of Lumagen commented, "SDI is 4:2:2 YCbCr, which is exactly
what comes out of the MPEG 2 decoder. DVI is 4:4:4 RGB, and leaves lots of
room for the DVD vendors to screw it up and in fact adds two color space
conversions to our video path, which can only hurt."

Quoted from http://www.convergent-av.co.uk/article1.html

Clive