"O Fortuna," the first movement of Carl Orff's Carmina Burana, was the theme music for the first three seasons of ROX. The bombastic opening chorus can be heard over the opening title of just about every episode, and often over the closing credits as well, and even over segment titles like "Viewer Mail," especially in the first season.
Mr. Mike:
The opening music fits the show perfectly; it's dramatic, pretentious, and fragmented (we never hear the whole piece, just the opening bars) - so it's a perfect fit with ROX.