Plasmas used to have a short life but they're a lot better now as the figurs someone put up, 60k hours is 10+ years

BUT a mate of mine works for a production company where one of the things they film is a games show on some sky channel [I went there a while ago to meet Cheryl Baker ], they have this area with 4 plasma screens and "burnt" into 2 of them is the Sony Playstation symbol where they've left it on without a game in it's still there when the TV's turned off