I am convinced all the new panny's are all prone to some kind of IR. You have to choose if you are willing to deal with it to get the outstanding PQ. I have an ST50 and I have stubborn IR at times, and still love my set because of the PQ. My current problem is a greenish tint issue that has appeared a little over a month and half ago and that vertical line that has plagued most of the st50's. I plan to call BB later on in the fall to have them come check it out and hopefully upgrade to the ST60. I won't be surprised if the same problems appear in the ST60, its basically a crap shoot when it comes to these sets. I wish Panasonic tighten up on the quality control.