Tata sky hd vs dishtv hd

[xmen360]

Hi fellas,Yesterday I went to a showroom which was displaying dishtv's hd on a Sony 32 incher ex400 model tv which had 1080 full hd.Now what came to my attention was the heavy pixelation on discovery and natgeo channels during the motion scenes.Even the ones with minimal motion.Only the pure static shots like some building wide angle view was good to look at.Is this problem with Tata Sky's hd too ?? Or is it common to both ?

 

[ganesh177]

Even the showroom guys are most of the time clueless about resolution and stuff. If STB is set at 720p then there is no pixelation at that resolution. And there is no visible difference in clearity for eyes between 720p and 1080i.I use TS and this is my personal experience. I am sure dish tv also have same thing to be done to watch it on bigger screens.

 

[sivanbalaji]

It should be common to both. Non-HD channels don't look good on LCD TVs irrespective of the TV brand and size of the TV. Even a HD-STB dont show non-HD channels good.It is suppose to be good if the non-HD channels are as clarity as DVD. Though DTH operators say their's is DVD quality video. You can see that a DVD content upscaled looks better than the non-HD channels upscaled.If you are getting LCD TV, you should to be ready to sacrifice the pleasure of the video quality of non-HD channels.

 

[xmen360]

@ganesh177 .. the pixelation is the kind which i used to see when lower bitrate channels were shown on dishtv SD.So my query was are the operators streaming those HD channels with good bitrate or not.Hope I am not confusing things up here @sivanbalaji .. I got your point about watching non hd channels on a HDTV.I understand that concept. Its just that I was so fed up with Dishtv's SD service where in they transmitted channels with lower bitrate, it used to get pixelated and pretty easy to make out on a 29" CRT.So I finally opted for videocon d2h and ditched dishtv. Now my concern was are they (dishtv folks) doing the same thing with their HD transmissions too? Thats what I wanted to know.I havent checked TS's HD.If one is watching TV on a huge screen 32" and more and the picture keeps on pixelating then it totally defeats the purpose of getting HD.Guys tell me one thing.. at what resolutions are they transmitting HD both dish and TS ? Is it 720p stream or 1080i stream ? And thanks for the quick replies fellas

 

[auroraPWN]

@xmen 360 there is heavy pixelation during fast / slow motion scenes because the STB is most probably at 1080i ... which is interlaced scanning .... you need progressive scanning to get a blur free and a image with less noise yea you can go up from 576i to 1080i not 1080p ....it requires a lot of bandwidth @shivan the signals the DTH operators are providing are infact DVD quality... each channel is nearly 8~10mbit.... which is as good as DVD quality...

 

[sivanbalaji]

xmen360, I don't think there will be any change in the way by quality for non-HD channels before and after the HD launch of any DTH operator.auroraPWN, I don't agree with you that the DTH operators gives DVD quality video. BTW from where you got this 8-10 mbit data? I can see such data when I play a DVD using the display option. FYI, any bit rated AV can be re-encoded to 8-10mbps AV. Digitalization brought many points where the AV quality can be destroyed between the input content provider and DTH operator who up-links the content.One more point to add is no operator provides even a stereo audio for all channels. But what they claim is CD quality audio. The FM radio channels are way better than DTH operators in audio quality.The main reason for low quality AV is the requirement of lot of channels in different language by a single operator. So every operator wants to squeeze all these channels in a fixed size bandwidth they have for up-link. Increasing the up-link bandwidth or reducing the number of channels are the only ways to increase the AV quality in DTH. In that sense IPTV is less strained as it is required 1x bandwidth where as DTH requires Nx (N-no of channels). So hope to get good quality from IPTV.I can not speak the reality about DTH on LCD TV since I do not have an LCD TV but the technology.

 

[mohit.anfield]

xmen360, I don't think there will be any change in the way by quality for non-HD channels before and after the HD launch of any DTH operator.


I think I might have misunderstood what you are trying to say there but the quality difference for even NON HD channels has gone up remarkably since I installed the Tata Sky HD at my place.
Its pretty obvious because I use an HDMI cable between the new set top box and the LCD(Digital to digital = no loss in quality.Plus the 1080 upscaled picture for the non HD channels) while the older ones used a cable providing an analog signal to an LCD TV(Analog to digital = quality loss).
I might be wrong but thats the best I can explain it.

 

[saurabh_g]

If you have full HD TV 32 inch, just watch HD channel on that and then see the clarity. One can not compare HD channels and Non-HD channels quality on a full HD tv.

 

[tech_enthu]

90% of the LCD TVs available in the market as of now are HD ready - not 1920x1080!

 

[shawn3120750]

one small query regarging the picture quality in Tata Sky hd compared to normal tatasky, in normal box we sued to get pixleation problem or struck pic prob and its been there for a long time, how is tataskyhd does it have same pixleation problem which is there is normal tatasky............ plz reply