http://www.plasmatvbuyingguide.com/p...-lifespan.html

Manufacturers figures for longevity are closely guarded but I have added some here for your review:

Panasonic: States in new specifications that their new plasma TVs and monitors are good to 60,000 to half life.

Sony: Also now states 60,000 hours to half life in their newest models.

Samsung: Lists 60,000 hours.

Pioneer: States 60,000 hours of use in their new 2005 models.

Sharp LCD panels: States 60,000 hour life.

For consumer use these numbers should be comforting. Plasma Displays are now about equivalent in longevity to LCDs, which typically state 60,000 hours or so life. Consider that these figures are a great amount more than old CRTs, which regularly post life span to half brightness at 25,000 hours. Let's put these hours in perspective. The average U.S. household watches 4 to 6 hours of television per day. Staggering. Taking a mean time manufacturer stated longevity of 50,000 hours of usage, times our average 5 hours per day we come up with over 27 years of usage.