PBS HD Buffalo Ghosting & Other Issues - Page 3 - Canadian TV, Computing and Home Theatre Forums
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post #31 of 204 (permalink) Old 2006-07-17, 09:22 PM
 
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Have been getting severe ghosting on WNED Buffalo - Toronto for the past few weeks here in downtown Toronto. See it both thru Rogers Cable 3250HD set top box and with OTA antenna coming off the CN Tower. That would seem to indicate that the problem is not with Rogers. When I first got my LCD HDTV and HD cable in early April PBS looked great. Something has changed somewhere since then.
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post #32 of 204 (permalink) Old 2006-07-17, 11:34 PM
 
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Quote:
Originally Posted by stephenM
When I first got my LCD HDTV and HD cable in early April PBS looked great. Something has changed somewhere since then.
Rogers switched from Spokane PBS-HD to Buffalo's WNED feed in late April '06.
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post #33 of 204 (permalink) Old 2006-07-18, 08:20 AM Thread Starter
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Quote:
Originally Posted by 57
Pictures were sent. Received the following response...
On behalf of all of us, thanks for your efforts.

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post #34 of 204 (permalink) Old 2006-07-18, 08:47 AM
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I saw the ghosting the other day.....it was a concert but I think it was widescreen. The camera was on a relatively slow pan. I read in another forum that this is because of lack of bandwidth for HD. I don't think its macroblocking.

As I've said before, other than this problem the PQ has been great...certainly better than Spokane or Detroit.

So what ever happened to Detroit HD ????
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post #35 of 204 (permalink) Old 2006-07-18, 09:51 PM Thread Starter
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I noticed a dramatic improvement in picture quality tonight.

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post #36 of 204 (permalink) Old 2006-07-18, 10:52 PM
 
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Quote:
Originally Posted by filper
I noticed a dramatic improvement in picture quality tonight.
Maybe not a lot of ghosting tonite on Rogers, but jello-heads are still quite noticeable on upconverted widescreen SD footage (Slavery and the Making of America).
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post #37 of 204 (permalink) Old 2006-07-19, 06:35 PM
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I watched a gardenning show today and did see some ghosting and also some flashing when there was slow panning over a lot of detail such as very small rocks or branches. This seems to be a relatively new thing. It certainly wasn't there when we got the other HD PBS stations.
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post #38 of 204 (permalink) Old 2006-07-19, 11:48 PM
 
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Flashing, strobe effect, PBS

I, too, saw the bright flashes when the camera panned at any significant distance. i.e. 20 feet or more. The close-ups didn't display the effect.

The garden show is the only time I've seen this. I'm wondering was it a glitch in the show's production and not the broadcaster.
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post #39 of 204 (permalink) Old 2006-07-20, 12:05 PM
 
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Watching naked planet on wned hd right now. I am getting a headache doing so. Any word on the technical adjustments they (PBS) have planned to correct this problem?
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post #40 of 204 (permalink) Old 2006-07-21, 08:02 PM
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Desert Speaks is full of ghosting....a really bad production This is relatively new. Guess its time to hassle Rogers.
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post #41 of 204 (permalink) Old 2006-07-22, 12:15 AM
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More feedback from PBS:

Quote:
We uncovered a buffer processing issue with one of our multiplexers - it was corrected Wednesday evening. Hopefully, this will take care of the problem.
I believe it's "better" than it was, but still not right. I've been away and will catch up on some programmes over the weekend. I recorded the latest Cousteau, but haven't seen it yet. Keep up the feedback...

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post #42 of 204 (permalink) Old 2006-07-25, 10:25 PM
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Watching Alaska's Gold Rush Train right now and the out the window views are making me nauseous. I think this show might be the worst yet for smearing (and I have seen it before the trouble began). If I had to watch the whole thing, I actually would be sick.
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post #43 of 204 (permalink) Old 2006-07-26, 08:38 AM Thread Starter
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Even 'Smart Gardening' suffered from the ghosting yesterday... and there aren't too many action scenes in that programme .

simplicity is genius...
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post #44 of 204 (permalink) Old 2006-07-26, 12:14 PM
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I agree. Post 41 response from WNED has not corrected the ghosting problem on motion. I find if the picture is absolutely still, it may be better than a couple of weeks ago, however, I too have been gettting "nauseous" watching all of the shows when there's the slightest movement on screen or camera panning.

I've watched a fair number of programmes in the past week - Cousteau, Art, Philosophy, SoundStage, Austin City Limits...

I will provide this feedback to my contact at PBS and advise when I hear back.

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post #45 of 204 (permalink) Old 2006-07-26, 03:31 PM
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Here are some sample photos of the issue:

Bruce Springsteen "Jello head"
Cousteau "discussion group" (camera panning)
Cousteau shark swimming by, note ghosting to the right of the tailfin.

(These are the worst frames in a sequence and are not representative of the overall programme.)
Attached Images
File Type: jpg DSCN0490 med.jpg (60.6 KB, 201 views) File Type: jpg DSCN0510 med.jpg (53.1 KB, 185 views) File Type: jpg DSCN0516 med.jpg (49.7 KB, 174 views)

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