The pilot crests (worn by Richard Hatch and Dirk Benedict, among others) on their collars were actually U.S. Army Military Intelligence Class A uniform crests.

The patch worn on the Rising Star medical uniforms is actually the shield for the United States Air Force Academy.

Episode 18 - "Baltar's Escape": This is likely a mistake, but it's a self-excusing one that, if intentional, was a nice bit of inspired continuity. In "The Man with Nine Lives", a Colonial Warrior, played by an actor not seen previously, is guarding new recruits that are confined in their quarters awaiting security clearance. He not only freely gives out classified information, but is eventually overpowered by two phony recruits and locked in a supply closet. Then, in "Baltar's Escape", the same actor appears as a member of the Council of 12's security team. It's likely the film makers thought no one would recognize him, but given the disdain that Colonial warriors have for the Council's security people, it is fitting to see this failed Warrior reassigned to the Council - a nice touch, even if not intentional.