I have bought three Panasonic plasma TVs in the last six weeks, and all have exhibited the same problem. After watching for 10 hours or so the previous settings that I have put in in custom mode erase and the TV goes back to default, standard settings. I took back two S60 TVs for this reason. I talked to Panasonic, and they admitted that it was a problem. Then I bought a ST60. It does the same thing. Now I'm wondering. Am I doing something wrong, or is there a glitch with the 60 series TVs?