Don't delay even out of warranty as some makers have a 3 month grace period.
I own TC-P54VT25 and I have had this TV set only for over a year now and 1 month after my warranty expired, I started noticing this huge issue on the screen.
During Standard screen option, there is a green dotted horizontal line that is present midway on the left side that stops halfway across screen.
During THX mode, there is a huge red and green lines about 2 inches long that appear on upper left screen, which also stop halfway through screen.
During 3D bluray playback, everything works perfect.
I also have pictures of the screen if that helps.
This is one of the best Plasma HDTV out there and I would really appreciate some input for this problem.