Why does my television take so long to startup?

I have an LCD 32" HD Konka television set. Sometimes it takes the TV a good ten minutes to startup, other times it starts up in seconds. I don't understand it. Why is this and what can I do to stop it?

LCD sets get their illumination from a flat fluorescent lamp assembly located behind the LCD screen. After long use these lamps can take a while to start up, but it should not take ten minutes. Your fluorescent backlight is probably defective, or simply worn out. The only option is to have it replaced.