Mitsubishi System 4 Home Theater Control

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Does anyone have any experience with the Mitsubishi System 4 Home Theater Control? I don't know how to set it up and I'm not even sure what it can do.

Here's what it says it can do: "System 4 Home Theater Control makes the day-to-day operation of a complex audio/video system as easy as using a TV. Simply select the device you wish to view on the TV's five-layer remote control and press the HOME THEATER setup button; both the TV and the AV receiver will automatically select the desired input. Most popular brands of A/V receivers are supported."