To anyone that missed this show, the acting in the first season is a bit stiff, but stick with it because it is setting up a well-written 4-year story arc that was planned in advance, not the usual JJ Abrahms / Hollywood making it up as they go.
(Yes I know, originally planned as a 5-year arc, then they were cancelled a year early, then un-cancalled after they'd already finished season 4.)
Straczynski also read real SF books unlike most TV writers -- one of the main inspirations for the ongoing war behind the wars was the millions of years war in E.E. "Doc" Smith's Lensman series.