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Yes, those are the ones I'm talking about, and for the time being I've just mapped them to the appropriate keyboard keys, using the "Virtual Cursor Keys" behaviour.
In fact, this is one area in which RB has been a godsend... For some reason, the folks at Elgato thought it would be a good idea in the very most recent 2.3.2 update to change the function of the Prev/Next buttons on the Apple remote to channel-surf instead of doing the instant-replay and skip-ahead functions. This has become extremely non-intuitive, as when viewing a recording, they perform the instant-replay/skip-ahead, yet in live TV they change channels.... I've already lost my place a few times when watching a bit behind and trying to skip a commercial out of habit (and it goes to the next channel instead).
Obviously, RB allows me to remap this back to the intended behaviour. :)