12" deep and no cannot be hung. Only weighs 63 lbs. Has a bulb and from the instructions that came with the TV, might take 30 seconds. Have had no issues there so don't know. Color is excellent and the black is deep. For the price, I am more than satisfied.

Here it is installed:



Here's the stand. I love the minimalism of it:



Here's the one I got:
Samsung 56" DLP

and here's the specs:

http://www.crutchfield.com/S-tmvZoCBW27Q/App/Product/Item/Main.aspx?i=305HLT5676

"Never underestimate the power of human stupidity" - Robert Heinlein