For some reason my IR setup using Niles (an MSU250 Main Unit and MF Series Microflashers, doesn't work with the AppleTV. All my other devices (Cable box, TV, DVD, Music Server) all work fine, just not the ATV. It works fine if I point the remote directly at the ATV (with or without the Microflasher on the device) but not when I point it (or my Pronto TSU700 on which i have learned the ATV codes) at the receiver on the front of my TV. I am very mystified.
Can anyone shed any light on this?