Back in my day we used to use gen lock for this. Gen lock syncs all of the refresh rates to a master clock so monitors and projectors don't get out of phase with each other or the cam. I don't know how the modern digital stuff deals with this. I would imagine there is still some kind of master ref for the studio.
Are the led panels serving video? If so then I would imagine that you want to gen lock the video server to the house. If they are running stand alone then you need to bring one down and let the cam guys play with shutter speeds to find something that doesn't create harmonics.
chad
*edit- Sorry just re read your last post. Looks like you are using just rgb lighting. He is probably going to just have to play with shutter speed and exposure. You might have to stick with high color saturation. In other words colors at full or close to full so the pwm is minimal.
You will also be surprised just how much key (or white) light they use for talent. Chances are that there will be so much light on set that you have to run your led stuff at full any way.
Last edited by chad; 08-19-2009 at 21:11.
When the going gets weird, the weird turn pro.