I just finished a plasma TV review for an upcoming issue of S+V. As I was writing up its brightness and contrast ratios, I realized there could be some confusion about the numbers.
If you measure the contrast ratio of plasmas (all plasmas, not just this one) the same way you do other types of televisions — namely LCDs and projectors — they post poorer numbers than other technologies.
This isn't a performance issue as much as it's a measurement issue. And why that is . . . that's kinda interesting.