Toshiba HD problems.

DJMorgan

DJMorgan

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I just bought a TV from tesco, and it says Full HD 1080p, But that quality is really poor, for example on an object you can see lines running down the screen.

I dunno if I make sense but im trying to explain the best I can.

I have an aerial in the aerial point at the moment, on my old tv which was rather old the picture was perfect, this tv is a 50hz tv too.


Sorry if this is the wrong site/section to post this in, just looking for a bit of help!

Thanks.


http://www.home-entertainment.toshi...39-LCD-TV-screen-size/32-LCD-TV-BV700-series/
 
How old is the aerial.

Your old tv was probably not a sensitive as your new one.

There should be a signal quality meter buried in one of the menu's. It's the quality that matters more than the strength. As your in Manchester you will be watching it in digital now.
 
ChrisH said:
How old is the aerial.

Your old tv was probably not a sensitive as your new one.

There should be a signal quality meter buried in one of the menu's. It's the quality that matters more than the strength. As your in Manchester you will be watching it in digital now.
Click to expand...

Iv searched throughout the menu`s, and i cant find anything that says anything like that :|
 
have you tried viewing any other sources, such as dvd or bluray to see if there is a general issue or just a localised one...
 
matty said:
have you tried viewing any other sources, such as dvd or bluray to see if there is a general issue or just a localised one...
Click to expand...

Yes I have, its on the DVD atm on the xbox, and normal TV is worse, e.g if you think about a photo, with the painting effecting. its blochy etc.
 
If it's showing up on the TV through scart or hdmi cables then it's a duff tv.

If you have problems with blocking nd pixelation from an xbox then it's almost guarenteed to be a faulty tV.

Take it back and get a Panasonic instead. :D
 
Well it works fine with TV and xbox etc, but yeah its just pixalated, n kinda fuzzy, ill see what happens!

Thanks :)
 
Welcome to the wonderful world of digital LCD TVs.

If you are seeing blocky pictures, but without errors, it's probably the processing in the TV. Standard def TV is NOT HD (and you don't magically make it HD by buying an HD TV). The system has to scale the (720x576 or smaller) image to fit 1920x1080. If you're watching lower bitrate channels (e.g. shopping/music channels), the effect is magnified. There are also a number of ways of scaling - not all are equal... You may get somewhere with setting noise reduction up differently.

It's definitely about quantity rather than quality with the number of channels available these days.
 
arad85 said:
Welcome to the wonderful world of digital LCD TVs.

If you are seeing blocky pictures, but without errors, it's probably the processing in the TV. Standard def TV is NOT HD (and you don't magically make it HD by buying an HD TV). The system has to scale the (720x576 or smaller) image to fit 1920x1080. If you're watching lower bitrate channels (e.g. shopping/music channels), the effect is magnified. There are also a number of ways of scaling - not all are equal... You may get somewhere with setting noise reduction up differently.

It's definitely about quantity rather than quality with the number of channels available these days.
Click to expand...

I have bought a HD cable today and games seem to be ok now, but not the best and its not as blury or blochy as much, BUT im currently playing avatar which is a very high spec film, graphics seem ok about, id say 4 to 6 feet away from tv, but you can still tell it isnt HD.

I got told today by someone in comet for the freeview too to buy a "signal booster" too.
 
DJMorgan said:
I have bought a HD cable today and games seem to be ok now, but not the best and its not as blury or blochy as much, BUT im currently playing avatar which is a very high spec film, graphics seem ok about, id say 4 to 6 feet away from tv, but you can still tell it isnt HD.

I got told today by someone in comet for the freeview too to buy a "signal booster" too.
Click to expand...
Games tend not to use MPEG processing, so will have different artefacts to digital TV. Avatar on DVD (I asdsume) will be about 3+ x the bitrate you are getting on your TV channels. Expect a quality increase accordingly.

Don't be fooled by expensive HDMI cables. HDMI is digital. Unless it is totally out of spec, a £1 HDMI cable is the same as a £100 HDMI cable (this doesn't hold over long distances though - say 8-10M+). If you think you are seeing a better picture, it's a placebo ;).

Digital TV, signal booster... nope.. unless you are seeing pics like this: http://www.xpression.ca/handbrake/blocks/BlockErrors.jpg (notice the line across the middle which is obviously an error)

Digital signals are either there or not... If you are seeing something like the pictures here: http://en.wikipedia.org/wiki/Compression_artifact it's the encoder/your TV that's causing it...
 
arad85 said:
Games tend not to use MPEG processing, so will have different artefacts to digital TV. Avatar on DVD (I asdsume) will be about 3+ x the bitrate you are getting on your TV channels. Expect a quality increase accordingly.

Don't be fooled by expensive HDMI cables. HDMI is digital. Unless it is totally out of spec, a £1 HDMI cable is the same as a £100 HDMI cable (this doesn't hold over long distances though - say 8-10M+). If you think you are seeing a better picture, it's a placebo ;).

Digital TV, signal booster... nope.. unless you are seeing pics like this: http://www.xpression.ca/handbrake/blocks/BlockErrors.jpg (notice the line across the middle which is obviously an error)

Digital signals are either there or not... If you are seeing something like the pictures here: http://en.wikipedia.org/wiki/Compression_artifact it's the encoder/your TV that's causing it...
Click to expand...

That second link is exactly how it looks, So in conclusion, whats the Encoder/Tv problem? Is it worth taking it back?
 
DJMorgan said:
That second link is exactly how it looks, So in conclusion, whats the Encoder/Tv problem? Is it worth taking it back?
Click to expand...
The problem is that the TV isn't hiding the artefacts very well, but it isn't broken. Another of the same TVs will be exactly the same. You will either have to fiddle with the noise reduction in the menus (there will be something like "block noise reduction" or MPEG noise reduction" settings in the menu somewhere) and live with the resultant picture or change it for a different make/model TV. When I last looked into this (2008), the Panasonics had quite good scaling, but things move quite quickly in TV land (not necessarily always for the good - price reduction can mean reducing picture quality unfortunately).
 
arad85 said:
The problem is that the TV isn't hiding the artefacts very well, but it isn't broken. Another of the same TVs will be exactly the same. You will either have to fiddle with the noise reduction in the menus (there will be something like "block noise reduction" or MPEG noise reduction" settings in the menu somewhere) and live with the resultant picture or change it for a different make/model TV. When I last looked into this (2008), the Panasonics had quite good scaling, but things move quite quickly in TV land (not necessarily always for the good - price reduction can mean reducing picture quality unfortunately).
Click to expand...

Well I think what I shall do is look into getting a new Aerial put up, and then if the signal isnt any better, maybe the booster, and if not that then sod it I give up :lol:

But thank you for all your help :thumbs:
 
DJMorgan said:
Well I think what I shall do is look into getting a new Aerial put up, and then if the signal isnt any better, maybe the booster, and if not that then sod it I give up :lol:
Click to expand...
Won't make a blind bit of difference. If you don't have errors like in my first picture (clearly a line wrong across the image) and they are all like the blocky artefacts in the second, improving signal strength won't get rid of them (although it will make your pocket lighter ;)). It's a by-product of the way the TV upscales the very low quality SD image to HD size. Sorry, but the only way of getting rid of the artefacts is to switch on the noise reduction in the TV menu or buy a better TV....

BTW, my day job has been delivering the consumer end of digital TV systems for the last 16 years so I like to think I have some idea of what I'm on about ;)
 
my parents have just got a 42" toshiba from tesco,'s for 399-00 i think it was
when i saw the picture i was pretty disappointed with the quality even on sky sports the players were ghosting slightly and the picture was not that sharp
i guess its how they are making them so much cheaper now
i would have thought a 50hz refresh rate wont be helping ether
 
Shame aint it, we spend all this money to get the quality we want, but there`s always extra`s e.g. Sky TV
 
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