I think it was the most recent episode, from last Friday, and the segment in which they were covering QuakeCon. One of the custom cases was decked out with at least two Marathon symbols. I think it said "Deja" on the left and "UNSC" on the right. They didn't talk about it, they just showed it. The box looked kinda like an old Apple II, but red (rust?) and yellow instead of beige.
It was also seen on the preview clip thing before the commercial break before the segment.
"It's one of the most successful first-person shooter franchises in the world, so it's no surprise that it has its own convention." Sometimes I just don't get life. Incidentally, why'd I have to miss all those Bungie fanfests in 2000-2002?
I wonder if I should be posting this on HBO, since it said UNSC.