[SOLVED] Metadata for series that needs a colon?

I am trying to get Serviio to pick up the correct series from http://thetvdb.com. The problem is that the series needs the colon; the series in question is "Superman: The Animated Series". Windows won't allow me to use ":" as a character for the directory, and I'm not sure how to use a .nfo file for a series with Serviio. My file structure is thus:
As shown, I can't put colon in the directory name, so what are my options???
As shown, I can't put colon in the directory name, so what are my options???