This short 1080p video says it all. While my Canon Vixia HF S200 camcorder cannot do justice to the real-life experience of eyeballing this 55" beauty, at least you'll get some idea. In a nutshell, they looked great, better than anything currently available.
I used the Canon stabilization feature, and YouTube's stabilization feature, to smooth out the at-arms-length hand-held camera shake. Despite the reduced resolution and cropping from the software stabilization algorithms, I don't notice any obvious loss of perceived quality.
Judge the before-and-after set of 1 minute videos for yourself!
Original footage (taken with camcorder's built-in stabilization turned on):
Same footage, uploaded to YouTube unaltered, then YouTube Stabilized: