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EPG, How Does It Work? |
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#1 |
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Forum Member
Join Date: Feb 2003
Location: Luxembourg
Posts: 340
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EPG, How Does It Work?
How does the EPG get updated? In particular what channels does the update come from and does this data only come in the housekeeping period at night or if left on certain channels in the daytime would the EPG update and how long would the channel have to be viewed? Any info on this much appreciated.
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#2 |
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Join Date: May 2005
Location: Redditch Worcs
Posts: 17,289
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The epg is a totally seperate data stream transmitted from the same Transponder on Eurobird 1 as ITV 1 HD comes from (thats all freesat do - look after the epg). This requires a tuner to download a new copy which is why you lose your picture and sound on a Foxsat-hdr after pressing guide for the time it takes to load the epg (about 30 sec). On a hdr the buffered epg can be viewed instantly without using a tuner by pressing schedule and then red.
Some channels transmit now and next programme info along with the video/audio. This info can be viewed in non-freesat mode. Accordimg to Barry at Hummy.org the epg gets trickle charged all the time the hdr is on, how often this happens and how much data is updated is not clear. |
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#3 |
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Join Date: Feb 2008
Posts: 65
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Interestingly (to me, anyway!), is that sometimes the EPG is there instantly, i.e., without the video/audio cut off that it normally has.
I haven't found any pattern to when this happens, it seems almost random (and not necessarily linked to just having looked at the EPG). |
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#4 |
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Forum Member
Join Date: May 2005
Location: Redditch Worcs
Posts: 17,289
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Quote:
Interestingly (to me, anyway!), is that sometimes the EPG is there instantly, i.e., without the video/audio cut off that it normally has.
I haven't found any pattern to when this happens, it seems almost random (and not necessarily linked to just having looked at the EPG). |
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#5 |
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Forum Member
Join Date: Jul 2007
Posts: 6,288
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Quote:
The epg is a totally seperate data stream transmitted from the same Transponder on Eurobird 1 as ITV 1 HD comes from (thats all freesat do - look after the epg).
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#6 |
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Forum Member
Join Date: May 2005
Location: Redditch Worcs
Posts: 17,289
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Quote:
In addition Freesat has, I believe, copied Sky in transmitting the next few hours of EPG data on all transponders as a data stream - this allows programme navigation using the cursor keys without moving back to the "EPG transponder". Sky provide the facility to merge this Freesat EPG data onto the transponders - as a separate stream from their own.
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#7 |
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Join Date: Jul 2007
Posts: 6,288
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Quote:
Freesat does not have access to any transponders other than the one it rents space on for the epg. It is not responsible for any transmissions other than this. ........ How would this work with any of the channels that are on both the sky and freesat epgs are you saying they transmit both ?
Sky do this for their own EPG anyway and yes - both Freesat and Sky partial EPGs are present (on different PID streams) for those transponders also used by Freesat. |
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#8 |
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Forum Member
Join Date: May 2005
Location: Redditch Worcs
Posts: 17,289
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Quote:
You are incorrect! A part of the Freesat EPG (just the next few hours data) are added to all transponders (transmitting Freesat channels) using the existing Sky "adaption hubs" - to extend the "now and next" capability. This is the one thing Sky agreed to do to support Freesat.
Sky do this for their own EPG anyway and yes - both Freesat and Sky partial EPGs are present (on different PID streams) for those transponders also used by Freesat. |
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#9 |
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Forum Member
Join Date: Nov 2008
Location: Cambs
Posts: 874
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Quote:
... If a free to air broadcaster wants to be on the epg they cough up £30000 for the priviledge that's Freesats only income source. .... ?
David |
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#10 |
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Forum Member
Join Date: May 2005
Location: Redditch Worcs
Posts: 17,289
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Quote:
Graham, is that £30,000 once, or per year ?
David
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#11 |
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Forum Member
Join Date: Apr 2006
Location: North Derbyshire
Posts: 41,783
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Quote:
Annually afaik. It's not a freesat from sky card
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