I believe there is a Zones code to display that file on some of the older Replays.
Yeah, here it is:
887 + Zones While in the Setup Menu, this displays a list of ReplayTV development credits.
Not sure which models/firmware it works/worked on, but it doesn't work on my 5xxx or 3xxx series units.
There is also a file with a bunch of Haiku poems in there somewhere (888+Zones in Setup Menu used to display them on the RTV).
Space - AB8NdtJzDULjgKvuDX3eJxHpXx88Xy9H