[opendtv] Re: PR: Majority of New HDTVs Powered By ATI
- From: Tom Barry <trbarry@xxxxxxxxxxx>
- To: opendtv@xxxxxxxxxxxxx
- Date: Thu, 18 Nov 2004 21:26:34 -0500
John Shutt wrote:
> Currently, PBS stations carry the TV Guide/Gemstar data in their
analog NTSC
> vertical interval. It is to be assumed that in the near future this
data
> will be carried on PBS Digital stations as ancillary data. PBS has
warned
> us to reserve about 1 Mbps for such data uses. This data, if it ever
> materializes, would only be available to TV Guide/Gemstar subscribers.
>
How could you possibly need 1 mbps (all day) just for TV guide data?
- Tom
> There is a huge flaw in OTA PSIP support that cannot be addressed
> adequately.
>
> Currently, if a viewer wants to see everything that is available OTA via a
> STB's PSIP driven EPG, s/he has to wait while her/his STB tunes in each
> station in the area and linger long enough to receive the PSIP data, then
> move to the next channel. The Samsung in my office takes 30 seconds to scan
> 3 OTA channels, then promptly forgets the data when you exit the full guide,
> causing another long wait when you want to see it again 5 minutes later.
>
> The solution of course is to add a second tuner to keep the guide refreshed
> in the background, which could also be used for the PIP or DVR functions
> also discussed here earlier today. However, ATSC tuners are too expensive
> and too complicated and in some cases may even require an active antenna
> steering signal (ala the ATI announcement circulated on this forum earlier
> today) in order to resolve an 8-VSB signal. So again what would be easy in
> DVB or DigiCable is expensive in ATSC.
>
> Currently, PBS stations carry the TV Guide/Gemstar data in their analog NTSC
> vertical interval. It is to be assumed that in the near future this data
> will be carried on PBS Digital stations as ancillary data. PBS has warned
> us to reserve about 1 Mbps for such data uses. This data, if it ever
> materializes, would only be available to TV Guide/Gemstar subscribers.
>
> John Shutt
>
> ----- Original Message -----
> From: "John Willkie" <johnwillkie@xxxxxxxxxx>
> To: <opendtv@xxxxxxxxxxxxx>
> Sent: Thursday, November 18, 2004 5:22 AM
> Subject: [opendtv] Re: PR: Majority of New HDTVs Powered By ATI
>
>
>
>>Gee, Gerry, just how will those sets get the data to populate the TV Guide
>>On Screen interactive program guide? Carrier pidgeon? I would hope they
>>also have full PSIP support, which you fail to mention.
>>
>>John Willkie
>
>
>
>
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