OTA stuttering on Sony TV - Only some shows
I live in MA where NBC just switched from WHDH to NBC Boston as of Jan 1st. It is being broadcast over 3 different towers and the one I can get is WMFP (a mirror of WBTS) UHF 18 Virtual 60-5.
This channel works fine on 3 of the 4 TV's in my house which are 1080p. However, with my oldest tv, a 720P Sony kdl-32l4000, I see a lot of stuttering. It does not seem to be a reception issue, it's more of a lag like the video slows down and then quickly tries to catch up. Similar to watching an HD movie on an old pc that is not powerful enough. This happens every few seconds. The odd thing is it does not happen with every show, just some shows and commercials while others are fine I tried to make sure all image processing options were turned off such as "cinemotion" and such but that did not help. Is there a chance the station is broadcasting some shows in 1080p and my 720p is just lagging trying to downscale? I can sometimes get another NBC station (WJAR) and when I flip to this one the same show will display just fine. It's only the NBC Boston station that I have this issue with. I have seen a few others having a similar issue when google-ing but no real steps to solve it. Any help is appreciated. Hoping it's not time for this TV to be retired. |
I answered your question here:
http://www.avsforum.com/forum/166-lc...l#post49549257 Your previous thread on this forum: WBTS WHDH - Anyone else in MA about to lose their NBC? http://forum.tvfool.com/showthread.php?t=16180 It's hard to keep track of your problem when it is spread out on different treads. |
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I appreciate your help but this is a completely different issue. I have taken steps to now pull in the signal that I was having an issue with in the other thread. Now that I have the signal, one of my TV's is having an issue processing it which is what this thread is about. |
Understood, but your background information helps others who are trying to help you, which is why it is best to keep it all on one thread.
It would have been even better if you had posted both problems on the Help With Reception thread where more people would see them: http://forum.tvfool.com/forumdisplay.php?f=7 Quote:
I addressed your NEW issue on your AVS ihread. Did you see it and read it?: Quote:
I have 5 Sony TVs, and each has a Diagnostics Screen giving signal strength, SNR and uncorrected errors. I have made tuner sensitivity tests of all 5 using a professional signal level meter (SLM), so I have a good understanding of the differences in tuners. Did you find that my answer about switching TVs to see if it was the TV or the signals to that TV location had no merit? Quote:
http://www.rabbitears.info/market.ph...&callsign=wmfp Quote:
When I bought my Sony KDL22L5000, the BestBuy tech said that the L5000 series had a better tuner than the L4000 series. |
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To improve signal I just tilted the antenna some and played with the rotator to dial it in. The signal is not as strong as WHDH was but it does come in at least while the leaves are off the trees in the northeast. On AVS I saw a reply from "Otto Pylot" was that you? The reply mentioned tuner anomalies which if that was the case I didn't think there was much I could do to correct. I have not swapped TV's but the Samsung TV I have is in the office next room over which has just as long of a coax run and no issue. Still I will try swapping and report back. I also took a video last night with the diagnostics screen up. You can see the video slow down and then skip a few frames to catch up multiple times in the short video. https://youtu.be/f8Lt22e8uKA |
Thank you for the video with the diagnostics screen showing; very helpful.
I think you are correct; it doesn't look like a weak signal problem. I suggest you post it on your thread at AVS. Set the camera color balance to daylight or cloudy to reduce the blue cast. Quote:
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