Neil Gaiman wrote a Babylon 5 episode! I found out yesterday. How come nobody tells me these things?

Day of the Dead, contrary to B5’s usual methodology of advancing an overarching main plot in every episode, is surprisingly standalone. It’s a creepy Halloween-type episode; each cast member gets visited by a dead friend or lover!

How is this SF and not fantasy? That question is often difficult to answer. Besides, if Gaiman wants to write an episode for your show, what kind of idiot would say no?