How do I find IR codes for Apple TV Remotes?

Looking for IR codes for Apple TV remotes, can anyone assist on where to find a list of the codes available for basic functions like Menu, Up, Down, Left, Right, etc?

Some very dated info here:


remotecentral.com/cgi-bin/mboard/rc-discrete/thread.cgi?5217


Why do you need them? What kind of app are you making?