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post #1 of 5 (permalink) Old 2008-11-08, 12:50 AM Thread Starter
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STB resolution settings

I'm a confused newbie

First, here is my equipment

TV: LG42PG20 Plasma
STB: Explorer 4250HD

I have read many threads here and the STB manual briefly.

When I hit the # key it's always written 1080i (all modes , all channels)

Reading the manual I understand that the videotron tech simply set the picture format to Fixed-1080i. Correct ?

I have read somewhere that generally 720p is better (especially for Plasma's and when displaying fast moving objects like an hockey game for example). Not sure if it's totally true. This is pretty confusing.

On the other hand I understand that most HD channels are 1080i so I would like to know if the conversion from 1080i to 720p would annihilate the advantage of the progressive mode.

Bottom line...what would be the best settings for my TV ?
Would the Upconvert 2 (480p, 720p) setting better than the Fixed -1080i setting ?
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post #2 of 5 (permalink) Old 2008-11-08, 12:55 AM
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Please see the following posts regarding recommended settings. For STBs, it's usually best to let the incoming signal passthrough to the TV, which requires you to enable 480i Standard, 720P and 1080i and "passthrough" in the "set picture format" setting.:

http://www.digitalhome.ca/forum/showthread.php?t=17719 SA Tips:

http://www.digitalhome.ca/forum/showthread.php?t=87543 On Upconversion

http://www.digitalhome.ca/forum/showthread.php?t=73528 Native Resolution.

http://www.digitalhome.ca/forum/showthread.php?t=57741 Useful post for those new to the forum.

Since you have a plasma, it'd definitely be good to feed 480i to it for the SD channels and have the TV automatically stretch those channels to avoid burn in if you watch a fair bit of SD. The TV will remember the stretch modes for SD and HD inputs separately, so just leave the HD channels "alone". You don't need to stretch the 4:3 upconverts on the HD channels, since that will likely represent a small portion of your viewing and you don't want to leave the TV stretched by accident and miss 33% of the true HD programming when you switch channels. The stretch modes on the STB are usually terrible anyway.

http://www.digitalhome.ca/forum/showthread.php?t=21270 Burn in.

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post #3 of 5 (permalink) Old 2008-11-08, 01:17 AM Thread Starter
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Thanks 57 for the quick answer.

From the Upconversion thread:

Quote:
Most HDTVs seem to prefer (provide a better picture) when fed a 1080i signal instead of 720P for HD. This is generally, but not always true - try both.
I guess that answers my question about 720p vs 1080i.

Anyway I'll set it to Pass-Through.
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post #4 of 5 (permalink) Old 2008-11-08, 09:52 AM
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That quote was from the DVD section, not the STB section. For STBs, it's usually best to let all incoming signals passthrough the STB if that option is available, which it is with SA.

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post #5 of 5 (permalink) Old 2008-11-08, 11:01 AM Thread Starter
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Thanks for the clarification.

P.S.
I made a mistake, the quote wasn't in the upconversion thread but in the "Native Display Resolution vs. Input Format" faq.
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