I just received my wd-73833. I just moved into a new home and have no cable and I haven't bought a PS3 yet. So I have no HD source. After examining the screen I noticed there is a dark mark under the screen. Tried buffing it off with the cloth they provided but its definitely under the screen. I borrowed my friend's Xbox 360 and we played a game of Madden...couldn't see it with a picture running but I couldn't get pure white all over the screen...so I'm not sure it wont show up once I get the cable hooked up and there's white at the top of the screen.

Does anyone know what this mark is? Is it something I should be concerned about? Will it show up if there's white on the location of the mark? If the tv has a problem I need to contact the seller immediately...so I appreciate anyone's assistance.

Thanks for the help.

Anyone got any insight on this? I have to call the seller today if I need to return this thing. Thanks again.