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. :)