Question : Problem: Plazma Screen Burn In

I am planning a conference room and am replacing my portable LCD projector with an on the wall TV.
My room is approx 30 X15 with a table for 10 in the middle.  The screen will be at 15' wide end.
Will 52" be big enough or should I go for at least 61.   Also do I need to be concerned with Plazma screen burn in the image.  It will be used to display from laptops, powerpoints, non moving graphics for presentations.

Answer : Problem: Plazma Screen Burn In

http://www.plasmatvbuyingguide.com/plasmatv/plasmatv-burnin.html  Great article on Plasma burn in.  Also... according to this site... http://reviews.cnet.com/4520-7608_7-1016109-2.html  a 52" screen would be too small for that room, as well as a 61".   I would recommend going to a store and testing out the TVs and asking questions.