Sum might not agreed bout the lcd burn in do happen..but..ive seen such cases happen mostly in industrial work where most of the time,the lcd being turn ON all the time (the lcd act as GUI/Monitoring the condition of specific machine)..till the lcd died (either from the dead pixel spreading or the backlight problem occurred).

even for my lcd,im not agreed to let it idling with static image even for 5 min...rather turn the display off..

my 2cent..

Do you switch Astro channel every 5 minutes to avoid the channel logo being static there for too long ?

I think most of the cases mentioned here are in extreme condition displaying a static image for a very long hours everyday. For the normal home users, who will watch tv 24 x 7 till lcd die off, so it's all different story comparing those lcd tv being used commercially with those used at home. I've had 3 lcd tv before including the current one and never experience at once so called the "burn in" where most of the time watching Astro channels whith their static logos at the top right corner for hours

check this link...

http://www.practical-home-theater-guide.co...e-sticking.html