Relax and just be careful the first couple weeks. This thread I us full of witch hunts. Read all the reviews and you will find IR to be very rarely even discussed.
As tempest mentioned, he watched Olympics for the better part of a week, and was able to pick up a hint of IR that is already almost gone. That much of the sane logo is bound to leave something, but it is temporary, and very rarely even noticed with regular content. Now if you watched the Olympics with a brand new set for a week with anything brighter than thx cinema, be prepared for serious IR or even burn in. At the very least perform a proper 100 hour breakin. And you don't have to use clef, just be smart.
Edited by TopperMcFly - 8/8/12 at 5:51am