I am new to the mx-450 and I am working my way through its functions. I have used the archiver and updated the firmware and database. I have the following equipment setup:

Panasonic 65" Plasma 3D GT30
Blu-ray 3D Panasonic DMPBDT110
Cox cable DVR/Cable box
Denon 1912
Apple TV
xbox 360


I have it basically working however if anyone has the best code set to start with for the devices above that would be great. As an example I am using 0110 for the cable box and that is good. I ran through the device setup using the power off method but their are multiple codes that power off the units and wanted to make sure I have the best one to start with.
The device for the Denon 1912 would help. Cannot seem to select zone 2 as an example.
Thank you in advance!
Dan