BUT, be aware that the TIMER has been created at the OTHER Hopper and will stay there RECORDING on that OTHER HOPPER for the future if it is other than a ONCE timer. So, your mate at the other Hopper may DELETE that timer thinking it is some sort of error either BEFORE your first recording or AFTERwards for all future recordings.
After having experienced this feature (which is GREAT), I have decided that I am only going to use it for ONCE recordings, so I don't have to mess with the other Hopper. Instead, I just let MY HOPPER recording the LATER showing of the episode, if available. It is MUCH less of a headache that way.
BE AWARE that this option is offered even if the THIRD TUNER IS AVAILABLE to record (purple icon). So, in fact, you can record it on your own Hopper, but it seems designed to allow you be able to watch LIVE TV while recording that 3rd program. Keep this stuff in mind before you gleefully select to have the other Hopper record. It may be far better to record the later showing. However, if you only have one chance for that recording, this feature is GREAT for OCASSIONAL use.