In the ongoing saga of trying to get RF control over a Polk xrt12 I have made a few observations that make no sense to me at all. First - I am using the trigger signal from my Denon AVR 3805 to turn the unit on. Once it is on it refuses to respond to signals from the flasher -- really NO RESPONSE at all. If I hold down the "button" on the TSU7000 while it sends the macro for channel number it will respond -- this is literally for6-7 seconds. After the tuner has done this a couple of times it then will respond normally to the macros -- for a while anyway. The Polk uses toggle bits, I think -- any thoughts about why this is happening?? Note - the OEM remote doesn't have this problem - and skipping the trigger for a direct turn-on doesn't change the behavior either. Also, the situation pertains both with my learned commands and the program in the files here on the greatest remote site in the world!!