Movies and TV shows should always be presented in their original aspect ratios. For Crusade that is 4:3. Heck, B5 should have been 4:3 also but that's a subject I'm not willing to get into.
Well I dont want to fully open that can of worms either, but I completely disagree on "original" aspect ratios. Just because the CGI was formatted 4:3...JMS didn't take the time to shoot the entire series in Super30 film for shits and giggles you know. He always said that his choice to shoot it that was was a very forward thinking move, anticipating HDTV specifically which is 16:9. He filmed it with that film so it COULD be widescreen. IMO that means no matter what a few CGI scenes say...16:9 was his original intended format.
Just because when the show aired there were very few 16:9 TV's out there and he had to present it in 4:3 doesn't mean he didnt realize that with each passing year more and more 16:9 TV's would be out there, and that he always intended it to be for the widescreen.
If he looked that far ahead, then as far as Im concerned 16:9 IS the original format...the film he used says it all.