[old_tv_nut]

Remember that the danger is cumulative increase in the risk of cancer. There is no particular threshold of safe/not safe. That's why the dental technician steps out of the room to press the X-ray button, not because of immediate effects. In the same way, TV X-ray limits were set so that no consumer could get a significant increase in radiation dosage from them in a lifetime. But techs were expected to heed warning labels when they opened a set.