The only way DirecTV could know would be if the DirecTV receiver were connected to the internet AND the receiver had some way of detecting if the video outputs were being split. I'd think that even if that were possible, a product like the EDID detective would limit the info going back to the DirecTV receiver from downstream so that it looked like only one display was connected.
I could be wrong.
A good answer is easier with a clear question giving the make and model of everything. "The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw
