Remote Control Question

Does anyone know if it's possible, and if so how, to stop my iMac from registering when I use my little white Apple remote (the one that comes with iMac, AppleTV etc)?

Reason being when I go to run through my AppleTV menu my iMac registers each press aswell.

I have the Remote app for my iPhone and iPad but I'd rather be able to use the Apple remote aswell for quick pauses etc so as to not have to load the app just to pause, skip etc if I'm using my iPhone/iPad for something else at the time.

Thanks.