>>prolonged viewing of 4:3 or static images can cause permanent burn-in,
>>but don't quantify what prolonged means.
Well all sets are different .... some have reported image retention after just several hours (3-4???). If you just fill your screen 80% of the time you should have no problem. Even after 2-3 months of running 4:3 you can condition them back by running full screen white in 2 hour bursts and always watching in full screen mode.
I much prefer watching a full screen "stretched" picture than a 4:3 ..... the question is do you?? Ya, I know, Pam Anderson's butt looks wider than it should, but one gets used to it.
Want to see 4:3 retention ( on its way to burn-in!!)http://members.rogers.com/kjcaudle/p...me1Source1.htm