What remote are you trying to use ? Slingcatcher is in the Logitech database for the Harmony series, and an RM upgrade file for JP1 compliant remotes is at http://www.hifi-remote.com/forums/dload.php?action=file&file_id=6017 but if it is a simple universal remote that takes only 4-digit codes I think you might be out of luck.
Unfortunately there is no way to control the SlingCatcher itself without the remote control, nor is there an option to set an universal remote control. Here is some more info:
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