Avoiding banding waves from 50Hz lighting and 60Hz computer projector?

[sgreszcz]

Does anyone have experience with camera settings to avoid banding waves from a mix of 50Hz lighting and 60Hz computer projectors?  I've been filming theatre that uses a mix of Halogen and LED lighting at 50Hz and am shooting 25p, 50fps shutter speed.  The problem is more and more theatre is adding digital projection which seems to run by default at 60Hz and sometimes causes annoying pulsing waves on the projected material, or worse, interacting with the general lighting.

I'm also not sure if it is possible to fix any of this in post.  I use FCPX and have access to Digital Anarchy's Flicker Free, that I guess I will try after the edit.

Thanks in advance...