What is the "Back" button on the remote supposed to do?
Actually, the 'Back' button on your remote does not 'Go Back' to the previous channel when used with the CM-7004.
Pressing 'Back' button, will ''go back/return to previous menu page' in the Menu System/GUI.
Unfortunately, there was an error in the first printing of the CM-7004 Quick Start Guide, that indicated it would go back to the previous channel.
We apologize for any confusion.