That's the most ridiculous explanation I ever heard ; and if they really worry about that, they could transmit gray bars like ESPN-HD.DarrellP said:Lee Wood, our CBS engineer at KOIN tried to explain it once, but it was just a bag of hot air. He claimed people without stretch capability for HD would suffer burnin (he happens to have such a set). I argued back that they could watch the downconverted signal via S-Video then his set could control the stretch/zoom but he just wouldn't buy that argument.