Cable Forum

Cable Forum (https://www.cableforum.uk/board/index.php)
-   Science & Technology (https://www.cableforum.uk/board/forumdisplay.php?f=26)
-   -   Future of TV? (https://www.cableforum.uk/board/showthread.php?t=11630)

Proppinupthebar 27-04-2004 17:39

Re: Future of TV?
 
Quote:

Originally Posted by andygrif
Does anyone know how much bandwidth HDTV takes up?

Sad I know, but I've got the kit!

The test transmission on astra 1 is currently using between 15 and 17Mb/s.
A cable multiplex can carry approx 38Mb/s.

Ramrod 27-04-2004 17:39

Re: Future of TV?
 
Quote:

Originally Posted by towny
Looks like he's not hosting the images any more.

There are a few more lower down

Proppinupthebar 27-04-2004 17:43

Re: Future of TV?
 
Quote:

Originally Posted by SMHarman
Googled this and this on digital spy came back

http://forum.digitalspy.co.uk/board/...d.php?t=119698

Indicates the combined digital radio bandwidth is 8Mb/s
An average DTV channel is 4Mbs
A quality one is already 8Mb/s
And an Analogue on is 36Mb/s

There are 40 odd analogue channels transmitted, switching off the analogue broadcast will free up 1440Mb/s of bandwidth that could be used for HDTV. I'm sure Proppin will come along and correct my guesstimates, but it looks like NTL will be able to carry the signals. You just need a new STB to decode them.

You will also need a HDTV capable TV.
You can't even convince some people to go digital, I think HDTV will only appeal to the technology hungy like some of us. Its more popular in the states and Japan as they used NTSC up until now and NTSC's resolution is lower than PAL's.

Richard M 27-04-2004 17:45

Re: Future of TV?
 
Guys, I strongly recommend that you check out some of the clips on this link:
http://www.wmvhd.com/

If you have a widescreen monitor, set it to 1280x768 (the correct resolution for viewing them) or 1280x1024 for a usual monitor.
1024x768 is better than nothing.

I wish I'd never discovered these because watching a regular DVD on my PC is just not the same - I notice the low resolution a lot more now... :cry:

erol 27-04-2004 17:55

Re: Future of TV?
 
HDTV has been around decades - literally

I first saw it at a CES show in las vegas in around 1990

(where I also saw my first gas plasma screen btw)

andygrif 27-04-2004 17:56

Re: Future of TV?
 
Quote:

Originally Posted by Proppinupthebar
Sad I know, but I've got the kit!

The test transmission on astra 1 is currently using between 15 and 17Mb/s.
A cable multiplex can carry approx 38Mb/s.

Sad? No! Can I come round your house? I'll bring the popcorn!

Do you have the TV that can view HD broadcasts too?

SMHarman 27-04-2004 18:03

Re: Future of TV?
 
Quote:

Originally Posted by Proppinupthebar
You will also need a HDTV capable TV.
You can't even convince some people to go digital, I think HDTV will only appeal to the technology hungy like some of us. Its more popular in the states and Japan as they used NTSC up until now and NTSC's resolution is lower than PAL's.

Is my assumption about analogue bandwidth usagen in anywhere near the right ballpark? If so the initial BBC HDTV, Sky Sports HDTV, UK Drama HDTV and Sky Movies 1 HDTV will all fit easily into the vacated space.

erol 27-04-2004 18:05

Re: Future of TV?
 
As far as costs go there of course massive costs in TV production to go to HDTV. Not just the filiming and editing equipment either. As it produces a higher definition sets that look ok on 'normal' TV show up all sorts of 'flaws' in HDTV and thus set production etc is much more expensive as well.

SMHarman 27-04-2004 18:07

Re: Future of TV?
 
The Blakes7 and DrWho sets would not stand up well to that sort of scrutiny!

Colin 27-04-2004 18:22

Re: Future of TV?
 
Thanks for the reply guys :) Think i got it, something to do with lines yeah :D

Jerrek 27-04-2004 18:54

Re: Future of TV?
 
Quote:

How does it work in places like Japan and the US, where they already have such a service - are viewers paying even more for HDTV versions of their channels/programmes?

Would broadband be the way to deliver this? (I would guess broad-er band than available right now)
Most, if not all, of the major networks such as CBS, NBC, ABC, FOX, etc., are already broadcasting in digital along with the analog. The digital signal is available. You just need the equipment.

For over-the-air free television, such as CityTV or ABC or NBC etc., you need a digital receiver box. Some HDTVs have it built in. Ours don't. If you don't have it built in, you need an external receiver which runs about 50 to 100 pounds.

For cable, you need a digital receiver which most people have, but it also needs to be HDTV compliant, which most people don't have. My cable company offers a 350 pound Motorla HDTV receiver, but it also has a 80 GB DVR included.

For satellite, it is pretty much the same thing. You need a HDTV receiver.



As for material, well, as I said, all the major networks broadcast in digital already. For example, CityTV is a free channel. I can get the regular CityTV, or I can view CityTV HD. Same programming, but the shows that are available in HD are broadcasted in HD on the HD signal.

Jerrek 27-04-2004 18:55

Re: Future of TV?
 
Quote:

Originally Posted by col d
Can i ask something? I'm not very clued up with all this, but what does High Definition TV actually do? Is it just better quality, which i thought DTV was meant to giv anyway

HDTV is high resolution television presented in a 16:9 aspect ratio with AC-3 sound.

Jerrek 27-04-2004 19:01

Re: Future of TV?
 
Quote:

Originally Posted by Ramrod
have a look here :)

Ooops, I deleted the pictures... Didn't think anyone is still looking at them. My apologies.




More on the content. I have satellite television (well, my parents have it, but I bought my own HDTV receiver), and I get the following HDTV enabled channels:

https://www.cableforum.co.uk/images/local/2004/04/2.gif https://www.cableforum.co.uk/images/local/2004/04/3.gif https://www.cableforum.co.uk/images/local/2004/04/4.gif https://www.cableforum.co.uk/images/local/2004/04/5.gif https://www.cableforum.co.uk/images/local/2004/04/6.gif https://www.cableforum.co.uk/images/local/2004/04/7.gif https://www.cableforum.co.uk/images/local/2004/04/8.gif



and of course, 5 regular porn channels plus one in HD: (so you don't miss the details...)

https://www.cableforum.co.uk/images/local/2004/04/9.gif

Jerrek 27-04-2004 19:04

Re: Future of TV?
 
One more post... Compare the regular TV:
http://www.hothardware.com/reviews/i.../compare2a.htm

With the HDTV:
http://www.hothardware.com/reviews/i.../compare2b.htm


Amazing huh? Oh and, my folks have this TV:
http://www.samsung.ca/cgi-bin/naseca...rojection+HDTV

I'd love one, but I can't afford one, so I watch stuff on my computer monitor.

erol 27-04-2004 19:23

Re: Future of TV?
 
Quote:

Originally Posted by SMHarman
The Blakes7 and DrWho sets would not stand up well to that sort of scrutiny!

did they even stand up to normal TV ? :)


All times are GMT. The time now is 23:18.

Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2026, vBulletin Solutions Inc.
All Posts and Content are © Cable Forum