Note the upper left and right hand corners.
Also note - this is a pitch black room with is no input signal and therefore nothing displaying. This is the "worst case scenario" for any bleeding you may experience. The instant you display any color - video game, movie, cable, dish, etc your knowledge of the bleeding will likely vanish, unless you only like watching "dark-scened" movies in a pitch black cave, then you will not forget about it haha.
As I stated, bleeding will occur with almost all LED televisions, especially with edge-lit technology. However, this will rarely affect the viewing experience.
With normal room lighting you will not see any bleeding. This tv is great. Vizio's tech support has been somewhat lackluster with this release, but the product itself gets a thumbs up from me!
**Sorry for the fuzzy quality of the picture - I took it with my cell phone (galaxy s3).