Usually it takes at least about 100-150 hours of use before you get the best picture quality from a plasma display, nevermind the brand. For that reason, it is always good to arrange a serious calibration (and/or test) when the display has 200 hours or more.
The best way I suggest you for doing the initial break-in, for those who are interested in that, is to use a 100 IRE pattern (full white), and run it on the display for about 2 hours for session. Then turn off the TV and leaving it off for 1 hour or more, so that the electronics and the panel get perfectly cool, and then repeat the session, and so on. Contrast should be set around 70%, and power saving function to low (or to off if the "low" option is not available). You can also use the internal timer from the OSD to turn off the TV (I don't know how it works on these new models). About 100 hours of break-in by using that system, and you will be OK
The interesting thing on the LGs plasma, on the previous 2008 and 2009 series, and I guess it is the same for these new models, is that you have that 100 IRE (full white) pattern available from the OSD. On the E.U. 2008 models its name was "refreshPDP". They offer it to clean the display in case of bad IR, but it is also perfect for the break-in
BTW, there should be also the "Orbiter" (I don't know the exact name on these new U.S. models) function available from the same OSD setup (if you don't find it on that setup, search for it in the PDF manual). It helps to reduce image retention (IR), and it is always a very good thing to use it during gaming.
Usually it takes at least about 100-150 hours of use before you get the best picture quality from a plasma display, nevermind the brand. For that reason, it is always good to arrange a serious calibration (and/or test) when the display has 200 hours or more.
The best way I suggest you for doing the initial break-in, for those who are interested in that, is to use a 100 IRE pattern (full white), and run it on the display for about 2 hours for session. Then turn off the TV and leaving it off for 1 hour or more, so that the electronics and the panel get perfectly cool, and then repeat the session, and so on. Contrast should be set around 70%, and power saving function to low (or to off if the "low" option is not available). You can also use the internal timer from the OSD to turn off the TV (I don't know how it works on these new models). About 100 hours of break-in by using that system, and you will be OK
The interesting thing on the LGs plasma, on the previous 2008 and 2009 series, and I guess it is the same for these new models, is that you have that 100 IRE (full white) pattern available from the OSD. On the E.U. 2008 models its name was "refreshPDP". They offer it to clean the display in case of bad IR, but it is also perfect for the break-in
BTW, there should be also the "Orbiter" (I don't know the exact name on these new U.S. models) function available from the same OSD setup (if you don't find it on that setup, search for it in the PDF manual). It helps to reduce image retention (IR), and it is always a very good thing to use it during gaming.