Continuity

So I was watching "The Gathering", the pilot episode of Babylon 5, and I caught something I had missed when I saw it the first time so many years back. When Kosh first meets Jeffrey Sinclair (well actually someone impersonating him) he addresses him "Entil zha, Valen". Now most people probably missed it completely and even those who wondered would probably figure it was some sort of Vorlon greeting. However you learn (prolly is season 1) that Valen was the greatest of the Minbari who set up their current form of government and rule of law. Why would Kosh refer to Sinclair as Valen? Because in Season 3 we find out they are one in the same. Talk about planning ahead. In the trailer they already had laid down plot points for a season 3 years later.

Also Ed Wasser, Mr. Morden, plays one of the C&C crew.