guys dyahe, i was so sleepy last night i posted this on the wrong topic
my suggestion if you want to demo several units, try to go to a big store where they have all, if not most of the units you're interested so you could do side by side demo, pref using the same source at the same time, that way you could spot the differences of each...just my 2 cents
dont forget to try to have each unit set up/calibrated to its best before the shoot out...while doing this, the other guys can try to talk with one sales rep after the other so they can spill the beans on their competitors deficiencies...talagang competition sila!
then you could go on your haggling with the different stores since you have an idea already which are your candidates, individual preferences na lang
lastly, think about the next most important thing you need after getting your tv, service and warranty....
from my personal experience just recently, i'm sure glad to have bought a tv with a factory warranty from a reputable store, coz you cant tell if you're gonna get the odd stock from the thousands built...
good luck guys!