Black level comparisons
These pictures show like-for-like comparisons of three TVs taken with identical camera settings (Canon EOS-5D full-frame camera with 50mm f1.4 lens. Exposure 10 seconds, f4.5 and ISO 250).
Please note that the TVs will not look like this to the human eye, as the camera is more sensitive, but the pics allow a comparison between TVs.
Panasonic TH-42PZ85 (below)
Pioneer 508XD (below)
Pioneer LX5090 (below)