Firefly Easter Egg - Alien Reference

Watch the first episode of Firefly. (by first episode I mean the first one on the DVDs, the American release was aired out of order)

When Malcom Reynolds shoots down the Aliance gunship in the Battle of Serenity Valley, look at the top center of the anti-aircraft gun's hud. Spinning there is the corporate logo of Weyland Yutani, the Company from the Alien movies.

I suspect that Joss has been sneaking these into his shows ever since he was involved in the fourth Alien movie, possibly even before.