I was watching an episode of B5 today and I saw something that I forgot about. In a few of the scenes in different episodes when they are talking in the Captains office, you can see an odd looking machinery or structures in the background. They used a red and white checkerboard texture. I realize this is old news but it is funny so I took a snap with my phone, hence the grainy, blurry, direct from TV attachment.
Obviously they did the effects and most of the compositing with the Video Toaster but this is blatant to me. haha