[opendtv] Re: UK widescreen formats
- From: "John Willkie" <johnwillkie@xxxxxxxxxxxxx>
- To: <opendtv@xxxxxxxxxxxxx>
- Date: Fri, 9 Nov 2007 12:51:26 -0800
Dermot;
Does "anamorphic" in this context mean that the sar doesn't match the dar?
If so, the "switching" that you are referring to has little or nothing to do
with DVB, but is pure MPEG-2 compression layer handling.
Regards;
John Willkie
_____
De: opendtv-bounce@xxxxxxxxxxxxx [mailto:opendtv-bounce@xxxxxxxxxxxxx] En
nombre de Dermot Nolan
Enviado el: Friday, November 09, 2007 6:24 AM
Para: opendtv [opendtv]
Asunto: [opendtv] UK widescreen formats
Two facts:
a) There are no PALplus receivers on sale anymore. I think Channel 4
analogue used to broadcast in PALplus.
b) All DTV transmissions are either 16:9 anamorphic or 4:3. The BBC began
anamorphic 16:9 in 1998, I think ITN, the ITV News provider are going 16:9
in December. Sky News is also anamorphic 16:9, as are most of the main
terrestrial channels. The remaining 4:3 broadcasters are usually niche pay
channels and other stations such as CNN, Fox etc which are carried on pay
platforms. The STBs and DTT enabled displays (IDTVs, plasma, LCD) all handle
switching between the formats automatically as these are set in DVB-T and
DVB-S1/S2 systems by the broadcasters with the appropriate signalling flag.
Other formats can usually be forced by the remote of the DTV display.
Kind Regards,
Dermot Nolan
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