Talia informs Ivanova that she is required to check in with the second-in-command. In the pilot, her predecessor was required to get approval from the station commander to enter the station at all.
G'Kar's dish of spoo switches hands between shots.
In the remastered version when Sinclair is writing on a tablet, it's obvious that the tablet is a wooden picture frame.
In the first few episodes there is a noticeable blue vertical line showing up in several scenes. This shows up in the DVD version of the show and in the streaming episodes on Amazon.
Between 37:35 -37:45, Sinclair and Garibaldi are walking down fast in front of a row of gates and they walk past the same two girls twice.