I was thinking specifically about the usage of the STOP font in the B5 season 1 finale, right before President Santiago is killed. They have the absolute lamest ball drop ever in the bar to celebrate the New Year (it's a single streamer that goes up and says "Happy New Year", printed in STOP.)
I want to say they use the font in the show one other time, but I don't recall exactly where; I could be wrong.
(I suppose I could be wrong about the whole thing...)