Here's how I got mine to work:
1. Ebay: LG LST 4600A (cheaper than 4200A). Make sure you get
the IR receiver for the 4600A with it. It is a little gadget on a wire which plugs into the box.
2. Ebay: One-for-all Kameleon universal remote (cheap, discontinued)
Also download their low-res .pdf manual at the One-for-all web site.
3. One-for-All's customer service dept. was great!
The "Magic Remote Code" is either 1414 or 1415. (not what has been mentioned
This gets most of the box's buttons and access to setup.
As has been mentioned, there is no on/off switch on the receiver.
You can have the Universal remote learn the off button for your TV, etc.
The LST 4600A is cheap right now, good quality, looks good, works well. A happy Deal.