> If it is anything like the technology I have seen, the shadows would. The version I have seen is essentially the same as the blue screen technology used for weather reports--commonly green screen now, I think. Coincidentally, that's the color of the fields, too. Basically, the images are superimposed on the green portions of the fields, so the players and their shadows appear to be "above" the image. Of course, if a particular jersey had some green in it that was the same shade as the field, you might get Invisible Athlete Syndrome.

That's what I figured, but then I was wondering how they would do that with shadows, since the color would then be a darker green and I didn't know if it would get filtered out. And if it didn't it would show a dark green spotch on the logo. I'm just wondering how they do it, if anyone knows. I don't imagine it would be that difficult, but I'd think they'd have to do a lot more programming to get it to work.