Originally Posted by vanillacoffee
.... But after watching a few games I could see pretty clear IR from the white "MLB.TV" logo and its border. .... I am up to about 50 hours now (not continuous, but in ~8 hour chunks). The IR has faded somewhat, but it is still noticeable. It is the most clear on a white or green background. I can't really see it anymore on red or blue.
....What should I do?
I'm still within Amazon's 30 day return period.
Stop watching MLB - ??
Or at least move to a different channel during Commercial Breaks.
Solid Color screens will show off any imperfections in the panel, including IR, as you have discovered.
A more important question would be "Can you see the IR during Normal Program Content?"
For a while, it seemed as if Long-Term IR and/or "Burn In" were ghosts of the past - but this is apparently not the case, given all of the complaints that have popped up concerning the past couple of model years.
Our own experience suggests that both 2011 and 2012 Panasonic plasma panels are (at least...) prone to "Quick Onset - Medium Duration IR," which we have already noted a couple of times on our 60" ST50 (about 5 weeks old now), and numerous times on various 2011 panels (S and ST models).
Managed to get the (also White) "Encore HD" Logo encamped on the lower right corner of our ST50, simply by watching a single 2 hour movie. It took ROUGHLY 8 hours of normal programming for that to disappear - although (to be fair) it had dissipated enough after only several hours that MOST people probably would not have noticed - without, of course, calling up a Solid Color Slide.
Our older Pan plasma panels (2.5+ and 4.5+ years old) ARE Relatively Immune to IR: it takes a LONGER amount of On Screen time for Medium Duration IR to set in - for example, we've subscribed to Encore HD for about 4 years, and this past week is the FIRST TIME I have noticed IR from their logo, beyond - quite literally - a few minutes of normal programming on another channel.
At the same time, we - that is Plasma Owners - seem to have a few things "working against" us:
1) It SEEMS that more channels are running Constant On-Screen Logos than in the past. Some of these are Soft Logos (Translucent), and those don't appear to cause many problems - but "hard" logos are another matter.
2) We are using our panels for more purposes than Simply Watching TV: gaming, internet apps, streaming movie services, use as a Large Scale Computer Monitor, & photo slide shows all tend to have more non-moving content / odd aspect ratios than Regular TV or (of course) DVDs do.
3) The manufacturers themselves seem to be aware of the POTENTIAL for Long-term IR / Burn it. From the Panasonic ST30 owners manual:
This Limited Warranty ONLY COVERS failures due to defects in materials or workmanship, and DOES NOT COVER normal wear and tear or cosmetic damage, nor does it cover markings or retained images on the glass panel resulting from viewing fixed images (including, among other things, non-expanded standard 4:3 pictures on wide screen TV’s, or onscreen data in a stationary and fixed location). The Limited Warranty ALSO DOES NOT COVER damages which...... [Etc, Etc, Etc....]
Have seen similar statements in Samsung manuals, and would have to guess that they exist in LG's as well - and hopefully so, as OUR Experience is that LG sets - at least of a year old or more - appear to be more prone to long-term IR / Burn-in than other panels.
Thus far, all of our Image Retention problems have been either short- or medium-duration (we had a "MENU" IR that lasted for a couple of weeks on our 50" set, but that was with limited viewing over that time period) - hopefully yours will prove likewise!